| All comments about rundll32.exe: |
 Alex | RunDLL32 is used to run DLLs as programs |
 Ryan | For some reason this program is hung in background and is stopping certain programs from opening. |
| Sid | Same meaning as Ryan. Program blocks some other programs from running and also blocks websites from opening. When process is closed, sites opens imediatelly.. |
 pete | Open it with notepad; search for text "padding"; if it is ther you an unidentified object; size of dll32 worm is 31,5 to 32 kb |
| Chris Korte | All already written on Windows DLL Archive. See also: Link |
| Mark | It does as Ryan and Sid have said, but it also inhibits Yahoo messenger from working properly as well. |
| Inuyasha | This program is part of Windows, used to run program code in DLL files as if it were an actual program. However, many viruses also use this name or similar names such as 'rundII32' (uppercase i appears the same as lowercase L in many fonts). It's also commonly used by spyware to launch its own code. See also: Link |
| | RunDLL32 is used to run exported functions of a DLL or EXE file... |
| Ronnie | Slows Windows XP from shut down/ log off. |
| N/A | Rundll32.exe loads and runs 32-bit DLLs. Rundll32.exe comes with all versions of Microsoft Windows. If you are worried if this process is legitimate, check the .dll name that follows rundll32.exe. Spyware, adware, keyloggers, trojans, etc often hide behind the rundll32.exe process. |
 Sid | Yes, its exactly 31.5Kb large.Viewed by Notepad its clearly, that the file has been modified - some "1337 artwork" is hidden in there. Also many "paddings" divided by an "XX" at the end of the file. I solved the problem, by booting in save mode, closing the process "RUNDLL32.EXE" and deleting the file.. untill now, it had no effect to windows. But IF, you can always copy the real rundll32.exe from your Win XP -CD. Since then, I had no more problems@browsing and starting programmes/games. |
| JD | RunDll32 was deleted and now I cant open my control panel |
| Berni | when you do not have a fire wall to stop it it opens a site and takes over your home page I do not remember wich one but it did it until I instaled zone alarm when it was in the list I did not give it access and then rest my home page and deleted the site but it still loads |
| Stephen Eccleston | search high and low and found that rundll32exe can hide trojons and spyware and can also be trusted software that just uses this line to run unknown software |
| Binish | causes the CPU to work in full load or performace shoots to 100% n makes the system dead slow, when stopped works normally See also: Link |
| | it prevents windows to shut down correctly, needing to shut down manually |
 BlackMaster | These data is creating from Windows, if it where not there, we can not open our contros panel. |
| John | There are some legitimate uses for (the real) RUNDLL.EXE for example, the nVidia driver settings control panel uses RUNDLL.EXE to load itself into the system tray. If you bring up the context menu on the nVidia system-tray icon and tell it to exit, RunDLL.exe will most likely disappear from your process list as well. Note that if you ask the tray icon to exit, the nVidia tray process will no longer load on startup. To re-enable it, you must go into DisplayProperties/Settings/Advanced/GeForceXXXX/TroubleShooting/ and then check the "Display nVidia Settings Icon in Taskbar" checkbox. |
| Alex | Ich weiss nur, dass diese Datei auf meinem Rechner dafür sorgt, dass immer wenn ich den Internet Explorer öffne sich dieser im Task Manager unter Prozesse nicht mehr selbstständig schließt. |
| Terranwolf[.com] | It can shut down your computer, and screw it up, as well as overwork your CPU,a nd you computer may get really slow or crash. Also, It makes it so you can't print ANYTHING, or burn CD's. It also opens a trojan and may download other bad files to your computer. |
| JPac | it kept erroring, and slowing down my computer. so i got rid of it...and can't open my control panel!!! so i would definitely not recommend deleting the file...but certainly find out how to tame it! |
| Snipper | Some users or should i say malicious users, are using this prog to initiate unwanted dlls. E.G. Swap mouse buttons and log off a user on logon. |
| venkatesh | when i start my system cpu usage is going nearly 99% because of rundll32.exe using nearly 85% of cpu |
| Norman Lo | It try to locate itself to my startup folder, I guess it is a virus |
| klapp | do i need this proces to use my programs?my msn doesnt work |
| Liz | deleted and now cotrol panel is inaccessable! |
 Jan | Microsoft DLL to run DLLs as programs, contained in Microsoft operating systems. But: many virus/worm use this filename too, have a look at the following link See also: Link |
| anonymous | Without it, I cannot access my Control Panel or any of my Display Settings. |
| SirPavlova | RunDLL32.exe is in itself harmless - it's a neccesary part of Windows. The problem comes from malware/badly coded programs/etc. These commonly use RunDLL32 to open popups, run keyloggers, etc., but it is also vital to many ligitimate processes. Don't remove it - just try to find out what's running it, then remove that. In the meantime, kill the process using Task Manager. Remember, something legit may be using it too, so use info like the "Mem Usage" & "CPU" to guess at which it is... generally though there'll only be one "rundll32.exe" process running, the bad one, if indeed any. |
| KR | I had a hard time with Rundll32 taking the place of Explorer on my hard drive. Remove VX-2 with ad-aware fixed the problem. |
| Blabla | each website is saying different stuff... rundll32 is a windows file.. and one website said it even contains time n date information.. is it harmful? when i check my processes it runs on 100% |
| william | once deleted it has a back up file to add to the start up undeteted so that it puts a lock on the control panell but i do not worry abot it that much because i am staring to find away around it and learning to kill it because your virus protector will normally skipp over because it thinks it is microsoft certified like some of the drivers and anyway it is like a old dos command.like all viruses that i have found i play with them on my older computer.if you want to learn more about a virus get a older computer and down load it in to it and start playing with it and see what happens |
| lucy | I know that if I don't close it from my Close Program Box I can't play Freecell. I wish I could understand it enough know if I should get rid of it. |
| YF, Programmer | rundll32.exe is substantial part of MS Win operating system and nessesary to launch all dll's - compiled Win32 programs (both good and bad) DO NOT REMOVE! Just |
| mooter | In my case it was part of the nVidia Desktop Manager functions, nVidia uses it to launch the tweak tool in the sys tray. If you have this and you have nVidia you can probably relax. If you do not have nVidia it is likely you have a worm. |
| | damned slows the machine, can't even open new windows properly and programs and webpages load a lifetime long... what the heck... |
| ChuckO | Here is a site for more info and resources on RunDLL32: http://www.dx21.com/SCRIPTING/RUNDLL32/index.asp See also: Link |
| Leon W | Zone Labs asks me if I want to open it. I say no. The computer doesn't seem to be any the worse for it |
| Guido | You can't STOP the dll when its running, everything still works fine. Do not delete it! |
| Jonathan | only operates on windows other and 2000, XP, and 2003. Im currently looking for more info, but i have XP and rundll32.exe is in my processes. My computer keeps restarting for no reason and sometimes does as soon as windows boots up. |
| cruzer3004 | it slows down my computer and doesnt let some of my programs run correctly |
| Andrew | i also deleted it by accident and can't use my control panel! How do i get it back? plz help |
| dude | In my firewall I get RANDLL32.EXE is that the same thing as RUNDLL32.EXE It keeps on poping up on my firewall it won't stop, and I don't want to let it in, what should I do I can't get rid of the popup |
| | Its New Dot Net Spyware according to My Firewall! |
| anthony from new zealand | its really anoying it makes my comp really slow |
| | check the properties it's orgin is smart link. |
| Jimbo | As others have stated "can`t open control panel/add remove programs etc". My question is "how do you remedy this problem?" |
| marius | MANY viruses are hidden with this name like run32dll or rundii32... i was infected with rundii32.scr, and it eats about 20 mb ram and goes with your processor somewhere at +80% |
| | bei mir ist rundll.32.exe nicht mehr vorhanden. Wie bekomm ich sie wieder? |
| Pascal | Je ne sais pas, c'est de Microsoft mais ? |
| amanda | it is used to run hotmail and msn...now i deleted it and i cant use those things..i NEED it back and i dont know how to get it? ahh |
| Oskar Greye | It is a necessary program for the dll librar to process properly. If you are having problems or errors due to this file, it is not the file itself, but a virus or trojan which is hiding behind it. |
| Festratocastro | As I have seen some people directly deleted it ! but first check when the process is ubicated. It is possible to see the rundll32 when you open the contro panel ! so do not deleted it , Win needs the process to work right. |
| TurboP | in Win9x, it ia a necessary process -- leave it alone. In xp and other os, it is malware! Get rid of it! |
| | I have 2 RNDLL32.exe processes running. Is this normal? |
| | This file takes over my entire CPU , I can't make it go away, |
| Frank | Does anyone how I can reinstall the file "Rundll32.exe". Is it possible to send the file by mail (wilde.fnm@bluewin.ch) so that I can copy it on to my pc? |
| A | Rundll.exe is required to execute a DLL as an application, a kind of which the control panel is. |
| Tim | i deleted the fine and nothing from my control panel will open now. keeps telling me rundll32 is needed to open programs, wish i can put it back now |
| Dr.Evil | its used to load 32 bit libs, it sucks, the hour glass beside my cursor keeps popping up and going away really fast, and in task manager, it opens and closes really fast making my comp really sluggish |
| howard | most of those files are adware ,spyware ,or viruses |
| Douglas | It's using 9% of my CPU , a 3Gig Barton core XP. running 18 DLL's |
| Sammylou | 3 or 4 of these files keep popping in & out of my task manager and freezing up any program I'm in. If I get rid of it, the programs run normally |
| @L() | Same as Norman, When ever i start the PC it says it can't be found, so i guess that it told the PC that it should run it. :-S |
| eric | Sa destruction rend le panneau de configuration non opérationnel |
| Max | My Rundll32 is modifided with this padding , but it doesnt run in the taskmanger and my system doesn't run slowly. I deleted it and needed to install Windows because Nvida CP didn't work and so on.... |
| Mike Z. G. (Delinquent986) | This file, on certain systems, does pretty much everything the other people say. Rundll32.exe is a windows system file used to make .dll files run as a regular application and, if deleted, you may have minimal customizable options to your computer. Control panel, user account prefrences, and more will not run without this file, which makes it required and a perfect target for trojans, spyware, etc.. To get your computer running back to normal get an anti-virus scanner that will try to repair system files but DO NOT remove this file. A link to a good virus scanner thats free is below. See also: Link |
| Victor Motas (Finland) | There seems to be 2 versions of rundll32.exe The harmless windows origin and the dangerous trojan one.. Kill the pestile immediately The right one is in sys32 dir and the evil one elsewhere in your windows or system dirs.. |
| Daniel "Dtoolman" | I had two instances of "rundll32.exe" running in task mgr on windows XP. It turned out to be connected to nView from my display adapter install. I stoped it by:: Turning off nView Desktop Manager: Display Properties/Settings TAB/Advanced/GeForce TAB/Left Pane..Desktop Management/Right Pane..Disable/OK/Display Properties OK/....That did it for me it's not there anymore. |
| EAA Alladien | this dll file runs my cpu usage up to a 100%!!!! |
| Druid Zeb JP | RunDLL32.dll is most commonly used on systems with Nvidia Graphics Card. On these systems, it is most commonly referred to as Nvidia Quick Tweak. Just make sure it is in your Windows/system32/ folder and that it is properly signed by either Microsoft or Nvidia. |
| Andy Ash. | RunDLL32 is the means by which an entry point into a DLL can be called. Such entrypoints could be good or bad, your guess is as good as mine. Asking if RunDLL32 is a virus, is like asking, "Is Windows a virus?". Many programs use RunDLL to execute detatched processes. These hang up as easily as any other software, but usually you cant see them on your desktop. If RunDLL is causing your computer to run slowly you need to find out what is causing RunDLL32 to be running. |
| Webgrrl | I suspected something fishy with the file, when shutting down windows 2000Pro it would always be hanging around in the background. It took away the ability of some of my programs to run, once I ended the process in the task manager everything worked fine. |
| Vesna | rundll32 was constantly running and slowing down everything I tried doing, avast antivirus recognized it as virus and several spyware programs recommended to delete it. My computer started working as soon as I shut rundll32 down. After I deleted it, everything works great, except I cannot run .av movie. So I guess it is true, there are two types of rundll32. |
| Racimo | A necessary, but maskable executable |
| Kappa | I am also trying to find out how to fix the problem.Something easy to do so that it does not slow down your computer, is to give it low priority by right clicking it in the task manager window.Just until you find a way to get rid of the problem |
| Johan | When it runs my notepad, outlook express and my frontpage do not work and when I disable it I cannot connect to my ftp or check for email. |
| Ian | rundlil32 is hacker with the "i" |
| Eko | I have PalTalk Messenger 7.0 and Rundll32 always messes it up. My webcam works fine (for example Logitech ImageStudio works) but then when I try to go on my cam on Paltalk, I get the mesage that Rundll32 has performed an illegal operation and then my cam never loads. |
| TC | Its needed to run the date n time function, mine wont work because my virus remover removed it so i need to re-download it |
| | You can just close it manually from taskmanager. It isn't such a big deal. |
| | windows needs it. |
| Matt G | caused my comp to no longer boot |
| Killer | It slows your system down 100% of cpu |
| rdl Beers | wont let me change my desktop wallpaper just helps crash program |
| Simon849 | After deleting Rundll32 from my computer Internet exploer along with the control panel. |
| Jill | it is constantly slowing down my computer and i have to end the process every time I turn on my computer |
| | rundll and Rundll32 are not normal for windows XP machines in the task manager. If so, it's a virus and use a virus remover immediately |
| | it pops in startup monitor (very useful piece of shareware) and i can keep it from loading all it's applications but it still loads a browser hijacker and a couple other bugs...I can't catch it with Ad-aware or with spybot |
| dg | I have 2 of them and I know that there's only suppose to be one --- but my AVG anti virus doesn't detect anything and as far as I know it doesn't seem to be doing any malicious thing.... but I can't help but feel it is as I have 2 of them and my bro has 4! I'm sure it's not good but I don't know which is the legit one from the fake one..... |
| BeanZ | Only dangerous when corrupted, it's fine when first installed, so if you do have a problem, delete anything under the name of Rundll32.exe (and program) and then copy the same file back to where you deleted it from your XP Disk, for example. But the majority of the time it is dangerous, so if you hint corruption or worms, re-install the files! |
| Frank Witters | Each time I go to Configurations and click on any of these items (mouse, printer, network, printers, .etc) I get the following message: Cannot find the file C:\Windows\rundll32.exe (or one of it's components). Check if this pad or file name is correct and if all neccessary libraries are available. STOP. By consequence I cannot go any further to change e.g. my screen saver .. |
| a victim | I Agree!!!! rundll32.exe is substantial part of MS Win operating system and nessesary to launch all dll's - compiled Win32 programs (both good and bad) Do not remove! Just |
| Jemi | I don't much this file, the only thing I know this file will be use by certain application. The problem now when I reload Windows it seems its run 2 "Run32dll.exe" |
| toxic | it sucks, it hacked my ie. my norton searches it, but cant delete it. i got it from COOLGOOSE.COM |
| Don | Rundll32 is a part of windows,The link below is a free process explorer. Better than using task manager! See also: Link |
| Don | Rundll32 is a part of windows, See also: Link |
| Okan Yildirimlar | Diese Datei ist ein Virus !Der beim starten von Windows immer auftaucht. |
| Okan Yildirimlar | This file is a virus more! Der with start from Windows emerges |
| | The legit rundll32 is designed to be invisible in the NT/2000/XP task manager list. If you see it running on Task manager it is a trojan horse given the name 'rundll32' to mislead you. |
| Ashish doshi | this is a system file if does not works you will get an error. See also: Link |
| Mike P. | I never had an issue withit until I installed a nvidia card. When my computer sits idle all nite everything freezes when i want to open them. |
| DL Alvis | I had deleted this file because spyware use this. But almost all windows operations use this file also. you cant run control pannal without this program |
| | Ich suche rundll32.exe, weil mein rechner Dateien ohne dieses Programm nicht öffnen kann. |
| elaine | my computer says it can`t be found, and i need it to run programs in control panel. how do i find it, it is or was a part of my windowsxp. |
| alles_wizzer | It´s a Windows Utility to Optimize the System in backround |
| anonymouse | i have 10 to 15 rundll32.exe running and they S-L-O=W everything down e.g webpages games and stuff i want todelete it but i am going to try going round it |
| dave - uk | i know that since i have noticed it on my task manager my computor wont open most applications and i dont know if it related but cant get onto hotmail.com. |
| Tony R. | it allways comes out when i turn my computer on |
| tgesix | run.dll itself does not appear to be dangerous. the trick is to determine which .dll files are being run and which of them are dangerous. in my amateurish (and probly) dangerous view. |
| Singh | I have this file on my pc and it blocks any internet service from working When ever you try to connect to the internet using explore or open any network application it just block it. Even when you do an ipconfig it doesnt give a gate way ip or any real public add such as .67..Iam still trying to fix this on my pc and need help |
| Trev | Common usageUsed to set taskbar Display Icon Properties (Advanced) Can be abused by intruder |
| Rob | Rundll32.exe is part of the win operating system used to run dll as apps but there is another file with the exact name that runs and cannot be closed down through the task manager. If you do close it down it does not matter as it will run undetected and still and cause your CPU to falsly run at max CPU power when you access your hard drive or other IDE devices but the CPU is not running at full but windows thinks it is |
| Mid | Rundll32.EXE is a Windows system file used to run a section of a dll file as though it were a standalone exe. It is only dangerous if maliciously used, or infected with a virus. |
| Ann | My comp started working so slow and I just fond out runddl32 working on the system. It is a virus or not? |
| | raccourci exit windows+rundll32 |
| | XP (as well as NT and server 2003) have a nifty little system file checker tool: go to Start Run sfc you can point it to the file you want to check, and it will re-copy it in it's original version from a cab file on your hard disk, or from the install CD. I'd like to know how to see what is invoking it |
| | Generic App |
| viv | If found in startup list, delete it without delay |
| Ganesh Sandhan | Rundll32.exe is a executable which is neccessary for windows environment. It is always present in c:/windows/system32. It may also some times found in other places which must be a virus. In case of virus it's always in mix, upper and lower case letters combination. RunDLL32 is used to run DLLs as programs.This program is part of Windows, used to run program code in DLL files as if it were an actual program. Rundll32.exe loads and runs 32-bit DLLs. I suggest you not to play with Rundll32.exe |
| Ivens Martins Góes | Rundll32.exe has performed an illegal operation (every time I start my computer) and My Remote Control for ATI 8500 DV does not load. |
| mrT | normally an essential windows file, but if it appears on task manager its probably been altered by some form of virus. In my case some suspect active X plugins altered the file. Everytime i started up IE i got re-directed to a site with popups tryin to get me to execute some dodgy exe. Solution: simply used system restore to reset the dlls to default state. The fact that the virus hides behind rundll32 makes it VERY difficult to detect/remove with common freeware programs (addaware, spybot etc) |
| Ronni | Just wondering most things you all said were in c/windows/system32 isn't on my computer. Any ideas? |
| spencer | I know that I need this file to open my control panel but it is apparently downloading viruses into my computer so what can i do! |
| TheoReticle | Use Process Explorer to see the Image... the Command Line box shows what called it. See also: Link |
| Cg909 | Das Programm führt nur die Funktionen von anderen Dateien wie DLLs aus, ist also meistens harmlos. Es wird unbedingt für die Systemsteuerung benötigt, kann aber auch (theroritsch) DLL-Viren ausführen |
| Sanim Samnani | RunDLL32 is basically a process to start other required process, most of the time called RunDLL32 executing other process / processes is left incomplete as some error or intializing called process fails, mostly happens in windows application, No harm in manually ending the process as it unfreezes the master application. |
| june | I deleted rundll32 after a spyware registry website said it should be deleted and now I can't open certain programs. Does anyone know if there is a way i can get it back? |
| Luke Barnes | When mem usage gets over 120mb, printing starts to get screwed up. Kill the process and all returns to normal for several days. Then is returns and slowly builds in memory size again. |
| | It keeps invading my computer with a note that says it is an illegal operation. |
| Leon | rundll32 is slowly killing my pc, i don't know what to do i deleated it in safe mode and i deleated it out of the startup files but it keeps coming back. It's stopping me from logging into MSN messenger, it's messing with my dirextX files and some games cant render properly, it's making my computer dead slow and theres 5 processes running all run32dll and it was not there before. And my control panel wont open but i fixed that by reinstalling windows with a new windows folder. |
| Miguel | I don't know what it is, but whenever it seems to be open in my Task Manager certain programs would close at random, so I would close it, the program would work. A few moments later rundll32 would REopen and the program i was running would randomly close again. So I searched for it, deleted it, but it kept coming back. So I finally found a way to get rid of it. I can still access my control panel, however. |
| Mike | I dont really know much about this, but i see 2 versions of this proccess in my Task Manager. I checked my system32 folder; where it's located, and checked its properties. size: 32.5 kb. But i dont get it, because there is two rundll32.exe instances on my task manager, and it wasnt there yesterday. I hope im not infected, i dont know what to do. |
| brian G | rundll32.exe appears to be a browser hijacker. It appears each time any explorer page is opened and also on reboot. I have tried many ways to defeat this trojan and none have long term success. The only way is F/DISk and reinstall your life then never go online again |
| BigBird | My brand computer has been acting pretty strage recently. I usually run my two spyware program and virus scan, but this time they found nothing, so i looked at system processes. It shows different rundll32.exe programs. Isn't there only supposed to be one? |
| Jay | Well I know that my computer wasn't shutting down and starting back up by itself before I came acrossed it .Im running xp system and when I goto task manager and end the process of rundll32.exe it stays away until I log off or restart the computer. |
| John Coulson | Part of Windows Operation System. Lost this file from my system one time. Couldn't open anything in Control Panel. Solved the problem by downloading good RUNDLL.EXE from Internet. No problems since.Make sure you get the good RUNDLL.EXE. |
| Matt Gilbert | seems to have the same date 5-11-98 as other win98 files - i disabled it in start up and moved it to another dir and things run fine without it so far... if it's absense stops hotmail and msn network it's probably a good thing ;) |
| malerick kisaragi | i hate it. it causes my computer to run at high CPU usage and the program rundll32 just appears spasmodically. I'm convinced that it can't be detected 100% of the time. |
| Doug | I have 2 running all the time. Mine is located in C:/I386 (I have a Dell computer) I do not show anything under Windows/System32 ... shouldn't there be one in System32? |
| Ian | If Microsoft (possibly) games are uninstalled without using the correct uninstaller rundll gets corrupted and lost... |
| | It HELPS your PC Run Good. If you Only have the one RunDLL32.exe File in your C:\Windows\System32 Folder. |
| | Part of windows, safe, do not remove it. As usual beware of apps with similar names |
| vishnu ajit | rundll32 is a file used my windows to load processes onto the windows explorer |
| Steffen K. | habe diese gelöscht,nun lässt sich nichts mehr öffnen, was mache ich nun?? |
| fool | most of you are idiots and your comments are useless |
| FuzzyAndrius | good program you can run dll as a program too! |
| FuzzyAndriusFace | good program you can run dll as a program too! See also: Link |
| Aarooni | I got worried when I found two cases of this in my task manager. One will use the library when you start add/remove s/w in control panel, the other turned out to be specifically Nvidia - if you right click the desktop/Nview Properties and disable Nview the rundll32 will disappear from task manager. I don't know of an easy way to check which program is using the library, I uninstalled my software to the basics and then started playing. If you can workout what uses the library and Adaware, Nortons or Spybot don't find any problems you should be okay. |
| Sledster | not knowing anything about the rundll32 nightmare except i cant access control pnl.it caues pc to slow down,my homepage has a mind of its own,some software acts up like a kid in church and i recieve error mess. cannot find rundll32exe.. this is what led me to this site,to find out rundll also causes confusion among those outside the pc.Is there an answere as to FIXING THIS DEMON? I cannot find rundll anywhere . do i need to install it? How?Where? also just to vent windows me SUCKS as bad as this GATEWAY computer HEIP |
| Jim | To solve the issue I ran a search using the full name, rundll32.exe. I had 2 applications and 4 PF FILES. I renamed the PF FILes by putting a z infront of them (so i could re find them easily if I wanted to reverse the process). MSN warned me that I was messing with a necessary Windows application. After I renamed the PFF FILES, they no longer were recognized and my problem ceased. My problem had been a lengthy soft shut down. Hope this helps you guys. |
| | JUNE.. simply put your Windows cd in to your cd rom and restart your computer, Make certain that your CD rom is being the first device read as per start up options in your BIOS. If you are unsure on how to change or check this, please ask a friend that is familar with boot up options. Anyway, having your windows cd in as your system reboots you will be promted to reinstall windows. Doing this will install windows with all drivers and your missing file. |
| Alex | This is a system tool that loads dll files into memory so that they can be accessed by other programs. If you have problems with rundll32.exe, the problem is not the process itself. More likely, you have infected or malicious DLL files in your System32 folder. rundll32.exe IS NOT DANGEROUS and SHOULD NOT BE TERMINATED OR REMOVED. |
| | I had it in my system, and showed up as a warning that it was a potential danger and to remove it (mcaffee), so I did, But kept getting a pop up by rundll32 every time I started my computer. Had 4 days of tech support and finally was told it was a virus and had to have my comp. completely cleaned and reinstall Dell. |
| André Ahrens | Die Datei ist ein Teil von MS Windows, und ist für das korrekte funktionieren von Teilen von Windows (z.B. Systemsteuerung) UNBEDINGT erforderlich. Das Programm kann jedoch auch von Viren missbraucht werden, oder es können Viren seinen Namen imitieren. |
| Moniker | rundll32 allows other processes to run. YOU NEED THIS FILE. What you are seeing are malicious processes that run under it. The smart thing to do is run an anti-virus/anti-spyware program, and don't delete random files. |
| Jonathan | This file comes with windows, but it can sometimes get infected. If you have a virus scan that says it's an adware or virus let it delete it because chances are it's not the clean file. |
| Spacekid | If it is in the Windows root folder it is a worm, if it is in the system folder it is typically OK |
| Jesse | legitimate is necessary to use windows, spoofed file is related to spyware, look at the filepath. |
| Mark | For some reason, all of my problems went away as soon as I deleted this |
| frank_rizzo | rundll32.exe seems to be used by my nvidia panel in the taskbar. |
| arron webb | stops your computer working properly |
| nomar | i show in my computer i dont want it |
| Ultimate_MCSE | Enough to be dangerous.. lol |
| kev | RunDLL32 is a windows process used to start other DLL files See also: Link |
| Dummy | Hazardous if combined with certain programs. May cause errors. |
| nimar | i don't think that it is harm for a computer .it also helps in working a computer properly by giving a supports to a various program |
| Sameera Gayan | rundll32 is a file used my windows to load processes onto the windows explorer |
| leon | it just pops up on my desk top when i star up windows i just click on ok and my computer starts working fine |
| joe | problems with programs not responding 'got broadband kept being disconnected ,everything seemed slower so i downloaded a fresh rundll32.exe from net .everything now is alot quicker See also: Link |
| | not dangerous See also: Link |
| Steve Burke | RUNDLL32 is the process used when deleting files from your internet explorer options. If you delete it you will no longer be able to access Internet Options from the Control Panel or from your IE windows. |
| fom | rundll32 is genuine MS program. But I had a problem with it constantly using up all my CPU. I think it was being used by spyware on my laptop. Solved the problem by updating/getting security patches for all my MS applications especially my Office apps. see link See also: Link |
| Darkspawn | rundll offers an entry point into a .dll file which otherwise don't have an entry point of it's own.If the .dll file is a malware meant to screw up your PC then when rundll32 activates the .dll it affects your PC adversely.As such rundll32 is harmless.The best remedy is to find the harmful .dll and remove it and not to delete rundll. See also: Link |
| Donar | On my Windows XP CD ther is a file called "rundll32.ex_ " bot not a "rundll32.exe". When i remove "rundll32.exe" from my system32 folder nothing is different because there is still a "rundll32.ex_". When i remove "rundll32.ex_" from system 32 folder then i cant open settings for windows and 3d card. |
| LJ | Hit Ctrl+Alt+Del - Click Processes - find culprit Rundell32.exe |
| Hexonflux | Install a firewall. If the process rundll.exe is cought trying to access the internet delete the dll file or do a system restore. You do not have a restore point for your system, simply get your install CD and search for the file. |
| h4un73r | Ele é um programa que carrega as bibliotecas necessárias ao funcionamento de algum programa. |
| Anonymous | While rundll32.exe is a windows program, it's also a front for dangerous material. I've found that it sometimes rests in C:\WINDOWS\Prefetch , and if you delete the imposter file it may help your problem a bit. |
| Peter, Denmark | I have the Rundll32.exe blocking up all unused processing power, so my PC would run at a constant 100% capacity, which, needless to say, made it very slow. I too tried deleting the file. While that didn't cause any problems, it didn't solve any either. None of the anti virus and anti trojan programs I'm running can find the problem... |
| people | This is from Microsoft used to run DLL(W/c code is EXE) as an EXE It will not harm anyone if and if some1 planted a dangerous program and LAUNCHED USING it. It's like RUNDLL32 is the CLOAK for the dangerous program. It's not harmful it's just that people are so dumb don't know things. |
| Markus | ist für windows notwendig... ich hab sie im abgesicherten modus gelöscht weil mein antivir einen trojaner angezeigt hatte... jetzt kann ich die meisten windows tools (zb für sounds ) nicht mehr öffnen und ich finde diese dateiu auch nirgendwo im net *heul* |
| Brandon | It is in partnership with se.dll when operating off of trojan.start page rendering IE useless. My yahoo messenger does not work right sometimes. I am still in the process of repairing the damage it has done. |
| tyra | rundll32 was deleted an i cant open anything in the control panel how do i get it back |
| Sup3r | Well i am suffering the same problm with this file I cant change date and time and cant delete or add new programms cause the system is continously giving eror that rundll32.exe not found even its there donno what to do ...... |
| Jordian | all it does is not let me delete history |
| agfadfgh | when i quit it with task manager my pc runs smoother and faster. |
| | i deleted it and not my computer runs great |
| sugar | the presence of multiple copies can mean the difference between amateur and professional infections, deliberate tampering, even in jest, may result in dramatic change in performance. instances of hardware heating have been related. |
| tiddy | micosoft use it to stop your firewall on internet explorer if they find out your xp program is a cope so beware they did it to me so now i have to use firefox because i have no firewall coz of micosoft |
| arron sss | this is avery kileer file for the pc. i can't open my control panel. and she opens for me a window that saies not avilabiel |
| Archer | It seems to be good thing for running zombies as DLL :) |
| havoc+ | systemfile |
| Ingo | Keinesfalls entfernen! Wichtige Datei für die Systemstabilität! |
| XLR8 | rundll32.exe in and of itself is essential to your Windows opertating environment. DO NOT DELETE RUNDLL32.EXE. Some people here are providing really bad advice... |
| Chris W. | It stops certain programs from working and ever time I click on a program it brings me to the "open with" screen and then I'm stuck |
| jimmy j | do not delete this file, it is required by windows. if you boot in safe mode and delete it, windows will automatically restore it from your cache. |
| Janie | there are 2 rundll files, one is rundll, and the other is rundll32. they are there so windows can run dll files as applications. the file may have been corrupted or replaced some sort of malware, or it's running a malware dll file. if that's the case, i'd recommend updating your antivirus program and running it, if that doesn't fix the problem, search for a way to correct the specific problem you're having online. but don't delete the program, your os needs it. |
| Nor | Mainly an annoyance i have two Rundll32.exe in my windows tast manager i have done multiple full system scans with software like Trend micro and found nothing Yet it does take up it's share in unused prosses though it's only taking up a total of 10K mem usage. my cpu with 32 Processes is 0% even when i'm online (it kicks up to 4% when i move my mouse |
| Kenny | Oh MY GOSH you guys need to check out the ProcessExplorer app that one guy posted. This will answer all your process questions forever, whoever wrote it needs to get paid for it... |
| Moo | See also: Link |
| nicval | I faced Rundl32 and eliminated it Rundll32 is a question? |
| Ultima | guess what go in task manager and stop running rundll32.exe then delete it from system 32 it works |
| Joe | You can't run it by double clicking on it in Windows Explorer. |
| Onion_Fu$ioN | just end the process when u startup! |
| Xltima | Been infected, slowy killing Computer |
| rob | When i shut down my computer, an error message appears. I think Norton has something to do with it! |
| Sitejs | Doesn't efect MemUsage, gives more protection when visiting sites |
| Donkey | I just know nothing much about this file |
| Ed | it IS windows but it can also be modified- sometimes my computer gets slow and I find it running ( go to taskManager) - usually I simply stop it from running and the computer gets back to normal speed , in my case broadband - I also do a clena up at the same time, just to make sure nothing bad came in |
| Garrett, Phoenix AZ | Applications (code) can be called directly from DLLs and will thus appear in the process list as RUNDLL32.EXE when they are really something else, like NVidia Display Manager and so forth. Winternals, www.winternals.com or www.sysinternals.com offers a beautiful utility for closely examining your process list. I highly recommend it if you want to learn what each RUNDLL32.EXE in your process list is doing. See also: Link |
| rang | this file has two version, on is harmless, signed by Microsoft Corp. however the other is a dangerous virus. it seems to be a FT file... |
| Dirk | On my XP mediacenter it is used by the NVidia taskbar. Closing this taskbar = closing rundl. |
| hazel | I disabled this programme from "windows, run, msconfig". Now my computer won't startup. I cannot even turn it on. I can't get to a point where I can change the settings back. My computer is thus rendered useless until I get another copy of windows. Does anyone have any advice, It cannot get past Bios - can I do anything from there? I don't have my origional copy of windows on cd anymore. I know this is the only thing wrong with the startup, I'd like at least to get my documents off the hard drive. Advice anyone? Would be much appreciated. |
| kel | this causes to reboot ur system without warning, just delete it |
| Anonymous | I have the trojan or worm in my computer, I have nVidia and there are 2 rundll32.exe process running the virus has got 4MB memory usage but I think I'm safe because I have Zone Alarm but don't know how to delete the virus |
| fryyyy | search for trend housecall on google, run a virus scan there. dont remove the valid rundll32 its part of the operating system, what is using rundll32 is what is causing the problem. .. mispelled or improperly located rundll32's are probably malicious programs. but use a virus checking program to find and fix. |
| Moloy Ghosh | Rundll32.exe is neither normal nor a dangerous one, but need attention as early as possible. Otherwise It will become dangerous |
| | Can be used for dll injection attacks, otherwise used by windows for converting dll run programs into actual viewable apps. |
| DRich | After stuggling with this for many, many months, I think I found a makeshift solution. When you find it running in your Windows Task Manager, right-click on the process and scroll over "Set Priority." Downgrade the priority to low. I have used this several times. Sometimes is still runs, but allows everything to run at normal speed. Other times, it goes away outright. This doesn't answer the question, WHY ARE YOU SCREWING UP MY PROCESSING SPEED, but does allow you to work normally. |
| John | rundll32.exe is like an adaptor. Normal dll files cannot run on their own, so this temporarily converts it to an exe in the system memory while it runs. The control panel is a dll, and so is the internet options thing. That's why it doesn't show up in the taskbar. The dll it is 'adapting' is the evil/good thing. |
| Matt | it stops my internet from workin and once i end process tree my net comes back... |
| Soul Eater | This file is needed to open Control Panel, Desktop Properties menu, and DLL's for Windows, when deleted many programs will not work anymore. |
| Mr Icekirby | This is a Microsoft file. Make sure you have a backup copy. People will often try to use this to make it look like Microsoft Windows is doing something. Find out what Dynamic-Link Library is being opened. |
| kernit the frog | found the rundll32 file and a rundll file, both of which were on as applications, in c:\windows, but not in either c:\windows\system or c:\windows\system32. Would this make either of those i found trojans? |
| Christopher | rundll32.exe is a legitimate process used by Windows operating systems to run the Control Panel, and several dialogue boxes (such as the Display Properties dialogue box). Terminating this process results in the inability to access certain Windows functions and settings. Do NOT delete this file — doing so will result in disabling certain functions of Windows until the file is restored. |
| Nate | My rundll32.exe file is 32.5kb 36kb on disk? I think it's somehow infected .. what should I do? |
| zap | rundll32 is a original part of windows it comes with the disk it should be in your system 32 folder if its found elswhere it is lickely a virus. if u only have the original one in system 32 and are getting errors related to it a separate virus may have damaged it.if u only have the real file and there is no problem leave it or u will lose your control panel or any programmes that are using the file to run. |
| Kevin | If running it allows full screen pop-ups. When closed, no more pop-ups. Experienced this on numerous occasions. |
| tomskie | you can find out which dll's are runnig behind rundll32 with 'dllshow2000' |
| Xapp | you are probably looking at rundl132.exe (rund el one 32.exe) this is a virus/trojan. Copy the file name, paste it into wordpad and change to a font where 1 and l (one and el) are displayed differently. See also: Link |
| oliver | when i try to kill this process in task manager my computer restart.. |
| ~MaD~ | it stop my computer from working properly... ! can someone help me about this... after i had this file, my anti-virus stops working and other programs. i can't even play the Sims :( i tried to put the restore cd but its not working.. i also tried to reinstall the antivirus but it can't.. i really need your help... |
| Tom | The file is used to run dll files. The dll will be ran either if it is harmfull or not. The fact that it is hidden behind 'rundll32.exe' makes it difficult to detect by scanners. Find out which harmfull dll is using 'rundll32' and delete that one. Also check if there are more files that look like 'rundll32' by using the search function, as the only valid one is the one situated in c:/windows/system32. Grtz |
| A. Doner | not actually dangerous, but for those of us using win 98 and 2000 its so annoying. rundll32.exe causes an error loading various programs (ie, messenger, and some media applications) . for now ctrl/alt/del and end its task until you fix the problem at its source (get a new firewall while your at it) |
| Joe | I installed an NVIDIA Geforce 7600 GS. I recently found that if you are running the new Control Panel it will put a rundll32.exe in your Task Manager. If select exit from the tray Icon for the NVIDIA Control Panel, the RUNDLL32.exe will go away. This is legit. I thought it was a virus/spyware/trojan but my spyware and antivirus programs did not detect anything. Thanks to John's input here, I was able to test it to make sure it was a legit RUNDLL32 action. |
| Louise | I delete my rundll32.exe and now nothing i working, someone know how I can get the program again? |
| Tomas | rundll32.exe is ok. runDLL32 or rundLL32 or Rundll.exe are dangerous. |
| R.J. | i believe my MSCONFIG is messed up by Rundll32 because it also has a file called "Installer" that is loading up with it at start, i can play any games because of it |
| XGeneration_Gamerz | found it in my musicmatch, system32 and windows servicepack files........weird. I think its legal, but theres those bugs that always use this name. i recommend that u use zonealarm and restrict this process from working, because it aint a vital thang to run windows. |
| robertunes | Rundll32.exe is a required OS component, and should not be deleted. Even though viruses and other malware can use it to run malicous code, it is required to run dll(s) from the OS & 3rd party apps If you did delete it, go to the windows setup CD, open cmd, type expand X:\I386\RUNDLL32.EX_ (X:\ would be your cd drive). That should overide the previous rundll32, or add it again (Restart after you do this). Use Spybot's process list tool and you can determine where the processes are on your computer. Also: rundll32.exe only runs when a program invokes a DLL. It don't run all the time. |
| giorgos | i use pcview its just like the task manager u use. i find 2files running on memory a "rundll32.exe" and a "RUNDLL32.EXE" Im always killing the one in caps lock but no antivirus can find it and delete it ... in c:\windows\system32\ there is only 1 rundll32.exe the one with no caps open ....ad-aware, mcafee and norton cant found anything wrong but i know there is something with the "RUNDLL32.EXE" |
| Phillip | I had control panel open and when i closed it through task manager it closed control panel i really doubt this can anywhere near bad |
| Doopypon | My CPU wont find it in windows/system32/, but i can go in and see it. Now I cant open all but 2 programs, not even system |
| Alex | rundll32.exe is perfectly safe if it is the Microsoft (real) version. I suggest you leave it be, deleting it may be problematic. |
| MD 20/20 | I right clicked on file and chose "run as" I then selected a user (me / admin is what I chose). I then was able to open files on CONTROL PANEL!. |
| sandesh magdum | the rundll32.exe is not a dangerous file. this is a system file used to exit from windows. this file is also call in ".bat" file if need to user to shut down the system. |
| Henry Chow | Can't delete it, it is Microsoft run a dll as an app, if you delete it, Control panel, right click my computer, etc....can not open it in any profiles.... |
| rahul reddy | i cannot restart my system. The process rundll32.exe do not end. i think this is a virus |
| | This file is NOT dangerous in any means. You simply have a virus that is using the file. Get rid of the virus, get rid of the problem. |
| Ivo | It's an essential Windows file - systemfiles.net - See also: Link |
| Ruben | This file is not dangerous, but it can be infected by viruses, use a virus scanner to detect if there are viruses in the file. It is needed to run dll files, thus needed for just about any program. |
| | I think this seems very suspicious. I always terminate the file when I see it in the Task Manager. |
| chris scarber | it runs the menus and the windows that dont show on taskbar (like the visual propertys window that lets you change your background and screen saver) it is a vital part of windows if you have a grudge agenst someone you delete this file and his computer will become hard too use and they will have to reinstall windows DO NOT DELETE THIS FILE! |
| Malcolm | If you are running xp pro you can open a "command prompt" window and type tasklist /m /fi "IMAGENAME eq rundll32.exe" C:\rundll32.txt then go to your c:\ drive and open the text file. The old one out is the rundll file. See also: Link |
| | i have this two rundll32.exe running on the task manager , i found the fake one but i cant delete it .dam i hate them |
| Marine | I got virus and when i remove it, i delete the rundll32 as well. Then i can't open most of exe program : . I dunno if that's the problem, but when i download the rundll again my program can be open normally T_Ta |
| Clint | if i ALT CTRL and DEL and lookin Processes....the RunDLL32 is under Owner instead of System....i have found no use for it so i just end task and it does nothing but i'm running Windows XP so i don't know if that has no thing to do with it |
| Steveo | i had a virus on my computer that used rundll32.exe to interfere with stuff. I could tell it was the problem because there was more than one rundll32 processes open on Windows Task Manager, and when i tried to end the process it would reappear on its own. |
| master | i can't open my control panel without it |
| Cirus | Was infected with "Virus Burster"--after ending rundll32.exe, problems ended. Control panel/display settings still work fine. |
| | Its true, the NVidia System tray runs this program too. When i exit the tray, the program stops |
| Nicole | Caused everything to be very slow, when ended everything was ok |
| O'G Chris | If I´m in a game and sometimes exit to desktop every now and again my CPU then gets used up by rundll32.exe and i end the process and it goes back to normal |
| D. Murray | use process explorer to replace task manager See also: Link |
| cypher | On my system the file is located at $WINROOT\sysWOW46\rundll32.exe with the ctfmon.exe. I am running a WIN XP Pro x64. Does anybody know, if it is correct in this folder or is it dangerous then? |
| Myles | Mine is legit, it;s been there since my computer was built and its been reformated many times and it still has the same date. |
| Bravo | Ok guys, this whole thing has to be put to an end. rundll32.exe is NOT a virus. it is simply an application which executes .dll files. However, if this process were to be terminated or hijacked by a virus, the result would be internet windows and other programs that open at random. These also open when your computer boots up. It also results in the inability to acess certain programs like the control panel. So unless you get a popup error saying "rundll.exe as an app has encountered a problem", dont worry. If this happens, seek help. |
| mark the man | If you are on an IBM laptop it is the battery optimizer that is making your cpu run at 100% if you download the new version and install it you are golden! Promise. See also: Link |
| S. Daniel | This is the file used to run dll files, and it supposed to be on your system. Like many other people have said, it is only dangerous when trojans or worms are created with the same name... This why you should pay attention to where you found the rundll32.exe |
| kk bhardwaj | to repair rundll32.exe |
| NAM | Is there a fix for the rundll.exe It often hangs up and will not let me run some game and music cds, on my dell dimensions, 4600. Zone Alarm is my firewall. |
| Kofi | it cannot be a virus. Why? Because i have just bought my new vista today around an hour ago, i have checked processes and it has been there, i havent been on the internet, i have full anti-virus software and therefore it is impossible for me to get any viruses, in other words.. rundll32 is not a virus.. |
| Lune | It can be dangerous, but if you have control panel up when the process shows up on task manager, it is just control panel. If it is showing up when you don't have control panel up, end the process |
| DevilsX | Every time i restart my comp, my antivirus stop function. But when i open the task manager and end the rundll32.exe process, antivirus function again. |
| Billy Ray Bob Jr. | Fix per, Tech-Support (US Computer Mfr)-Your going to roll back the date on your C; Drive. Go to: Start, All Programs, Accessories, System Tools, Restore. Follow the instructions, choose a date before your problems began. It will restart your computer after restoring to specified date. I could immediately access my control panel and download updates. It did not effect any up to date programs or work that I had done. I backed up all files I needed just in case. A Roll back can be done whenever you run into these type of operating problems. Always be careful when deleting any files. |
| A. Vassena | It's from Microsoft and it is part of the core operating system, but you cannot bet it is running for safe and secure reasons at all! It would be better if Microsoft adopted a better way of doing things... but experience does not confirm we can think of it positively... Better switching to Linux as soon as our apps can run on it. Ubuntu is a really damn good start to avoid this rundll.exe issues for ever! |
| Collin Cerbus | It disables the start menue and taskbar. But I was able to press "Ctrl+Alt+Delete" to get to the "Run" Function of Windows, so then I could run Norton to get rid of it. |
| ... | It just stops Explorer.exe so u cant do anything and when u get rid of it windows runs normally but it comes back after a while |
| FMasic | Rundll32 freezes all the time and is only sometimes useful |
| Scrin- | rundll32.exe is a process which executes DLL's and places their libraries into the memory, so they can be used more efficiently by applications. This program is important for the stable and secure running of your computer and should not be terminated. |
| mobilemania.8up.org | read loads of different write ups on it, and more often than not people seem to say its not dangerous. it just looks very similer to virus terminology |
| Now relieved. | Downloaded with some other rubbish inadvertantly. Caused continual pop ups interfering with normal useage and slowed down the computer. Pop ups were all reporting spyware and directing me to rogue spyware sites. Couldn't be removed, system restore didn't work, a complete menace. Sorted easily and quickly by downloading free Malwarebytes' Rogue Remover. An excellent product and an excellent site dedicated to removing spyware from the web. Couldn't recommend highly enough. See also: Link |
| ntkw | according to msconfig, rundll32.exe command says to run the Bluetooth Authentication Agent. so if you don't use bluetooth, i'd say just go to services.msc and disable your bluetooth. |
| Andreas | i found hidden rundll32.exe from dllcache folder, is it normal or should I delete it? |
| kyzin | When it deleted i can't use properties when right click on desktop, can't show my computer properties. |
| Trapper | You can use a program that automatically kills (or blacklists) a specified startup item (Not Tested and so might also block the real rundll32.exe). On very rare occasions startup items can be deleted from msconfig and regedit (if you don't have any experience it is better to use a Startup Manager) You might set the priority as low, although this would not really solve the problem at all. You can use a combination of methods I have written. There are various other techniques that can be used. This file should not be deleted but taken care of, if you suspect it.. |
| Trapper | I have seen 'rundll32.exe' running on many of my clients' computers. A normal computer would not show this process although it still runs. As many others have said the aim of this program is to run Dynamic Link Library files (*.dll) into 32-bit executables (*.exe). This program is vital and should not be deleted. Clients have had problems accessing Control Panel etc. after deleting it. If you see 'rundll32.exe' (similar but not exact / multiple processes) that are eating your memory than you should do one of the following: 1) Use System Restore (although this might mess things up).. |
| akshaydeep | its a very imp. file for all os. it is used to execute some programs and open the control panel |
| Billy | okay, every time i try to open my "control panel" a screen pops up that says "Windows cannot find 'C:\WINDOWS\system32\rundll32.exe'. Make sure you typed the name correctly, and then try again. To search for the file, click the Start Button, and then click Search. I am confused and dont know what to do. |
| Peter_C_ | Get the ORGINAL rundll32,exe from your WinXP Cd. Start your PC in safemode and past the file from your CD over the top of the infected file. Always use a firewall (ZoneAlarm) and AntiVirus Program (NAV corp 9) See also: Link |
| Pierre | Its necessary and dangerous, exactly as anything else in Windows. If you have troubles, try to 1) Kill the process 2) replace the file 3) reinstall windows 4) Try linux |
| Tam | This application merely runs DLLs, problems with your computer that may seem to be caused buy this program are actually caused by a dll file, Start Run "Msconfig", and check all the programs that use rundll, google each one and find out if it's safe or not |
| Rave | Rundll loaded since i intalled the nvidia driver for video card without it the control panel for display will not be there for u to fine tune your card. I have noticed the trojan/virus's use the same name for malicious exe files though scan your stuff regularly |
| jason | i searched for "runedll32" and it came up with runedll32.exe and also rundll32.exe(numbersletters).pf, can somone tell me what it is for? |
| JGC | Its part of the Nvidia video card. |
| Zaha | It's not necessarily dangerous, unless tampered with. It's part of WINDOWS so without it dll based programs wont work. If you delete it you'll see that your control panel tools wont work and many others. Just like "Nate" i too have the same problem, my rundll32.exe is 32.5 kb insted of 31 kb...i don know how to solve it my programs are all going haywire, not responding and microsoft office was completely corrupted |
| ALEXANDER | OK ... so it's a two step process in wich you can fix this . FIrst you go to this link http://support.microsoft.com/default.aspx?scid=kb;en-us;812340 do exactly as it says and the rundll32.exe will work for a while . Until you enter a game or shut down your computer . Then you need to get an antivirus with dayly update and run it . It will get the virus out of your computer and after it get's it out you need to do the first step again but this time the rundll32.exe will remaine in working shape . See also: Link |
| Circassian Eagle | This file opens DLL apps... But dangerous to delete... That is NOT a spyware or a virus. |
| AntiVirus | There is two rundll.exe one from new dot a virus i think. So go to run, msconfig go to startup and find newdot and disable it. |
| Taqi Ahmed Taha | Is a windows file not dangerous unless infected See also: Link |
| SAM | messes up iranview |
| C. L. | When opening Vegas 6.0 on vista, it [RunDLL32] stops working. I can still open control panel[after opening vegas/stopping RunDLL32, and my computer works fine. |
| LaDy_ArAnCaR | i had a problem like this rundll32.exe too.. it will only appear when i tried to open or run any GAMES in my PC. |
| Cyrus-BTTURK | Bluetooth yüzünden de arkaplan da çalışıyor olabilir öyleki bunu C:/Windos/System32'den de silemiyorsunuzdur. |
| Andre | I downloaded a .bmp file and my computer froze. When I tried to close the .bmp file it said something that "rundll32" had froze. So I thought it was a virus i had downloaded with that name. I searched on the file and it came out clean with my AVG but I deleted it anyways. Now i'm thintkn it might harm my comp since it's MS shit. What should I do? :S or was it perhaps a virus? anyways I dont have it now the rundll32.exe file.. any help please. |
| matt | John was right about shutting down my nvidia toolbar icon. That made it go away on my running processes thx |
| malcolm | I cannot open control panel or any other programmes without disturbance |
| | Rundll32.exe like in the name runs dll files and is not a virus! |
| Anon | On my system, three run under my username in the task manager. Two are files that I know I can trust, but I don't know about the third one...The security task manager can't pick it up so I rate it as a little dangerous...sometimes. |
| matt | been having many virus detections in windows 32. many i delele, some i cant do a thing with. avast catches many of them, as well does spyware detector. but lately ive been having rundll32 errors when i log into windows and running from the icon. thats the only app i noticed probs with so far. i did a search for it and found rundll32exe originally in the windows 32 folder as it should be and didnt touch it after reading most of these comments. there were many pf files though in the preface folder which i deleted and a few otherrundll32exe applications in other folders, including windows |
| Gerrard | This is a vital program belonging to the platform. |
| Joey | It's apart of Windows XP, and other Windows Versions. Nothing to be afraid of here, needed to run the PC in good shape. |
| | cause its my first experience with this file, i chose to be neutral though. I got this problem right now that if i right click My Computer or Desktop, Add and Remove programs icons and choose Properties i got a DOS window in form of a pop up as if rundll.exe is executed the it disappears but i don't get the my result of choosing properties; so basically i don't why it have to happen like this. I'm sort conviced it can be a virus for this case or i should update my antivirus software and scan for virus before doing window repair |
| Brian | If it pops up each time you open the internet then go to internet options, then advanced tab and uncheck enable 3rd party browser extenstions and then close all internet applications and open up the internet again and it's gone. |
| FlYrAtEr | Generic host processes for win32 services. |
| Jaberwoky | Well ALL I know is that its a pain along with other so called "harmless" Windows files that just sit around and take up resorces that could be used with the other programs that really need it ..if anyone here has any REAL info on how to kill it once it has done its job ..it would be good to place that here.. |
| atif | this is just because some improper programme is running on ur computer that the comp cant understand. |
| Joe B | every time I open internet explorer i get a message from internet security asking if i should allow web host proccess (rundll32) to run or close it, how do i get rid of this message? I have vista. |
| Trish | Slows my computer (webpages, internet connection, etc) But so far it hasn't been doing anything else besides slowing things down... I always have a message that says Rundll32 is not working properly and then it gives me the option to close program. |
| Jeffrey | This file "C:\WINDOWS\System32\Rundll32.exe" is 100% legitmet, it has come with windows since windows 95. If your "rundll32.exe" is eating 100% cpu time, then it is either infected or running viral code. What does it do? Rundll32.exe uses the api call "LoadLibrary" in kernel32.dll to "load" the library it gets given in the command line, which then in turn calls the secondary entrypoint of that dll file. Which should be "dllmain". That is exactly what it does, all it does, all it has ever done. It is not a virus. |
| | try searching your computer, click "search" in start-up then type "rundll32.exe" from there you will know wether it is a virus/spyware or harmless file.. |
| lakshminarayana | windowshostprocess(rundll32) See also: Link |
| Tufail Prem | it is a windows system file managed the dynamic link library,its work is to convey the task with the library of the windows See also: Link |
| markangelodano | when i run error doctor whe i open my pc it is always an error on start up file and even if i remove it s always there everytime i open my computer. is this a virus how can i totally remove it |
| Kenotia | This is a necessary part of Windows. Yes, it is used to launch several malware files, but it bears repeating that it in itself *isn't dangerous*. All you people blaming this process on your problems should do a little searching and you'll find that it isn't this process that's causing the problems, unless you happened to be boneheaded enough to delete it. Your problem is something else you did to the machine. ALWAYS back up any file you delete, especially those in folders you shouldn't be in in the first place. LEAVE THIS PROCESS ALONE if you're not having any problems. |
| LBS HAWAWII | it was stopping explorer.exe and control panel from opening; overall a huge pain in da ass. search for the file using windows search and dealte what is allowed what isn't allowed you can't delete anyways. I had to end the process many of time right click on the process and also end the tree try it it will work. |
| Haargen_Dasz | I think many of you people need to go back to school and take a computer course. There are so many of you who throw nonsense into websites without getting schooled before you open your yaps. The file, as listed, is fine and won't harm your system at all.... AS LISTED |
| | wwhat happen when delet this file of windos |
| jimbo | Potential Dangerous Information - RUNDLL32.exe is a microsoft program used to 'launch' DLL's as a process. SPYWARE and other related software use this in combination with services to infect your machine and to keep there software running. You need to dig into the HKEY/LOCALMACHINE registry and figure out what is launching it. It can be tied to WINLOGON, USERINIT and others during startup. RUNDLL32.EXE is not the source, it is just a generic MS launcher. You need to find the caller source. |
| nakamura | its need to run winxp |
| BEN | Alright i have two of these in my task manager. When I pull up their process information using WMIC it says that the one of them is doing something with the nvidia tray thing but the other one says this: cmcnfgu.cpl,CMICtrlWnd The only difference between the files is that the one using nvidia ends in .EXE and the other one in .exe but in the task manager they are the same which one should i delete? |
| Dan-Erik | Can be used to run C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit if you have a NVIDIA based graphiccard and have the nView Desktop manager set to run at startup. See also: Link |
| ibrahinm | its needed to run some softwares in a computer |
| Expert | Part of windows. Runs drivers as applications. It is not a virus/worm, as many of the people who have poor knowlege of Windows who posted here would have you believe.... |
| Richard | Task manager shows rundll eat too much CPU as well as MsMpEng See also: Link |
| indonesia | this file infected slowly and infected the library link another file like gdi32.dll and your desktop not define start in path location source the file shortcut |
| | nothing seems to happen after i killed it using task manager |
| Oscar Sanchez | It is the most common file to be infected as a virus! the way to check is ALT CTRL DEL and look in procceses as clint said and if it running as system then you are ok.... but if it is running as you......... you've got a virus |
| Mikel | Its as dangerous as the internet explorer. The program itself causes no harm. It is part of Windows and necessarz for manz functions. But it can be misused. If you get a virus through IE, don't blame IE for it and if a Flash animation locks up your computer, it's not IEs fault, but it is the IE proccess which seems to cause the problem. Same for RunDLL. It is a launcher for program code (good or bad, necessary or unwanted) inside of DLLs. Such as the control panel applets. Or the NVidia control. Or a Virus, or a 'hanging' code. So try to find out what has been launched through RunDLL. |
| John | If you run procexp(Process Explorer by Sysinternals) and check the properties on it you'll see that it's mostly used with all things nVidia. The 2 instances on my local machine are for the GUI and nVeiwer. I've yet to have either cause a hang up or loss of any kind. See also: Link |
| Danny | Everytime i startup, rundll32.exe pops up and the hardware wizard appears. its really annoying, and somtimes when i plug in my flash drive, the wizard also pops up. i have no idea why this is happening. |
| Mami | Just installed new anti virus, and now keep getting pop-up saying there is a problem with run dll32. What cas I do |
| Nick | It is a harmless file. It's one of the necessary background tasks used in Windows of all versions. In short, it's SAFE. If your computer hangs from this process, then you need more RAM. Smart... |
| Winslow | That file may keep some programs from runnimg, but it's essential for Windows to run. The reason for the blocking is not a virus, but because the program (.exe) is corrupt, or the program has an error in the code. |
| Destiny | I am wondering if anyone has heard anything about UNIBLUE Registry Booster to help repair the problems. I search rundll32 and this booster is who I get... does it work? Should I do it? It is worth the $$? Norton is not helping!!! I am clueless and my laptop is rather new! HELP!!! I cannot seem to do much for long periods of time before it just decides to shut down and I also get taken over by popups (firewall & popup stopper not working) |
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