Complex parasites often use dynamically linked library files (DLLs) that contain code responsible for implementing certain harmful functions and required by threats to work as intended. Many browser hijackers and browser plugins consist only from DLL files, which are registered in the system and sometimes can be injected into some safe essential system services, so that it can be practically impossible to remove them manually or eliminate using automatic spyware removers. The way out is to unregister such DLLs and then simply delete them like ordinary files. This can be enough to stop the parasite’s activity and completely get rid of it. Read the following guide to learn how to simply and quickly unregister DLL files.
The tool you need to use is called Regsvr32. It is a native Windows program, which is already included in your operating system distribution. Regsvr32 is designed especially to register and unregister DLLs, ActiveX controls and other similar files.
Let’s say you want to unregister IScript7.dll library file, located in C:\Program Files\Common Files\InstallShield\Driver\7\Intel 32 directory. (Note that this file was taken as an example. It is a fully legitimate object that doesn’t need to be unregistered or removed from the system!)
To unregister the DLL you have to:
1. Open the Command Prompt
Press the Start button and click on the Run option. This will start the Run tool. In its Open: field type cmd and press the OK button.
Image 1. Open the Command Prompt
2. Navigate to the exact DLL location
When the Command Prompt window will appear, change the directory to exact DLL location path as shown on Image 2. Type the cd command (it is used to change the current directory), put space and enter the full path to the DLL. Press enter. This will change the current directory to that you have entered. To display directory contents use the dir command.
Image 2. Navigate to a folder containing the DLL
3. Unregister the DLL
Within the exact directory type this command: regsvr32 /u [dll_name] and press enter.
Image 3. Unregister the DLL
If the DLL was registered in the system and the operation was successful, you should see a message very similar to the following:
Image 4. The operation succeeded
If you have accidentally unregistered harmless DLL, you can register it back by invoking regsvr32 command without the /u key: regsvr32 [dll_name]. This will undo the changes.
If you are not sure why you have to do a certain task, do not know how to perform described actions or above guide is too difficult for you, feel free to try our recommended automatic spyware removers.
March 28th, 2007 at 12:20 am
When I try to regsvr32 /u fyxkaah.dll I get a message that says:
fyxkaah.dll was loaded, but the DllUnregisterServer entry point was not found.
This file can not be registered.
April 3rd, 2007 at 2:06 am
Same with mine…oyopu.dll
June 8th, 2007 at 3:15 pm
I didn’t understood what to do.. what i have to write at directory
June 15th, 2007 at 10:45 am
Yeah I got the same message as James but with gbjkog.dll
I ended up having to actually restart my computer in safe mode command prompt only.
Then navigate to the directory the DLL was in for instance
c:\windows\system32
which put me where I needed to be
then I just used the DEL command to get rid of the DLL completley
example from start:
cd c:\windows\system32
DEL gbjkog.dll
and that got rid of it for me should work on all DLL files from safe mode as windows doesn’t load what it doesn’t need in safe mode command prompt
I was working on getting rid of spaycrush for days no spyware remover found that spacific DLL. It was the only spycrush file left on my system. I was still getting the fake system message so i would assume it to be possible that others would have the same problem either with that or other DLL files.
I used a combonation of Spybot search and destroy, and XoftspySE, spyware remover programs to find all available files and they got rid of everything else.
hope that helps