A hotfix update-2 package for the Volume Shadow Copy service for Microsoft Windows Server 2003 is available. This update package includes all previously released VSS related fixes plus fixes for the following specific symptoms:

•	When you use the Shadow Copies of Shared Folders feature on a Microsoft Windows Server 2003 cluster, your shadow copies may be lost when you move groups between nodes. When this problem occurs, the following error message may also appear in the Application event log: Event Type: Error Event Source: VolSnap Event Category: None Event ID: 5 Description: The shadow copy of volume volume could not be created due to insufficient non-paged memory pool for a bitmap structure
•	You may not be able to create volume shadow copies on large volumes. Smaller volumes are not affected by this issue. Events 28, 20, and 7001 that are similar to the following are logged in the System event log: Event Type: Error vent Source: VolSnap Event Category: None Event ID: 28 Description: The shadow copy of volume Letter: could not be created due to a failure in creating the necessary on disk structures. Data: 0000: 00000000 00580002 00000000 c006001c 0010: 00000000 c000009a 00000014 00000000 0020: 00000000 00000000 Event Type: Error Event Source: VolSnap Event Category: None Event ID: 20 Description: The shadow copies of volume Letter: were aborted because of a failed free space computation. Data: 0000: 00000000 00580002 00000000 c0060014 0010: 00000002 c000009a 00000013 00000000 0020: 00000000 00000000 The above are caused by resource problems 0xC000009A STATUS_INSUFFICIENT_RESOURCES = Insufficient system resources exist to complete the API. Note This problem may be temporarily resolved by restarting the computer.
•	After you restart your Windows Server 2003-based computer, your Volume Shadow Copy service snapshots are lost.

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This problem occurs because of a problem with non-paged pool allocation. This problem may occur if the difference (diff) area volume is not available after startup.

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Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix replaces the hotfix that is described in the following Microsoft Knowledge Base article:

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Server 2003, 32-bit versions

   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   02-Feb-2005  04:32  5.2.3790.262       59,392  Clusdisk.sys
   02-Feb-2005  04:28  5.2.3790.262      225,280  Dmadmin.exe      
   02-Feb-2005  17:46  5.2.3790.262    1,055,744  Esent.dll        
   02-Feb-2005  04:27  5.2.3790.262      129,536  Ftdisk.sys
   02-Feb-2005  04:27  5.2.3790.262      273,920  Swprv.dll        
   02-Feb-2005  04:27  5.2.3790.262      141,312  Volsnap.sys
   02-Feb-2005  04:27  5.2.3790.262      131,584  Vssadmin.exe     
   02-Feb-2005  04:27  5.2.3790.262      544,768  Vssapi.dll       
   02-Feb-2005  17:46  5.2.3790.262      130,560  Vssui.dll        
   02-Feb-2005  04:27  5.2.3790.262      663,552  Vssvc.exe        
   02-Feb-2005  17:46  5.2.3790.257       18,432  Vss_ps.dll       
   02-Feb-2005  04:24  5.2.3790.262       59,392  Ws03res.dll     
 

Windows Server 2003, 64-bit version

   Date         Time   Version            Size    File name        Platform
   ------------------------------------------------------------------------
   01-Feb-2005  00:33  5.2.3790.261      181,760  Clusdisk.sys
   01-Feb-2005  00:26  5.2.3790.261      658,944  Dmadmin.exe      IA-64
   02-Feb-2005  17:46  5.2.3790.261    2,606,080  Esent.dll        IA-64
   01-Feb-2005  00:25  5.2.3790.261      448,000  Ftdisk.sys
   02-Feb-2005  17:46  5.2.3790.261      706,048  Swprv.dll        IA-64
   01-Feb-2005  00:26  5.2.3790.261      418,816  Volsnap.sys
   01-Feb-2005  00:26  5.2.3790.261      284,672  Vssadmin.exe     IA-64
   02-Feb-2005  17:46  5.2.3790.261    1,351,168  Vssapi.dll       IA-64
   02-Feb-2005  17:46  5.2.3790.261      361,472  Vssui.dll        IA-64
   01-Feb-2005  00:26  5.2.3790.261    1,793,536  Vssvc.exe        IA-64
   02-Feb-2005  17:46  5.2.3790.257       28,160  Vss_ps.dll       IA-64
   01-Feb-2005  00:20  5.2.3790.261       58,880  Ws03res.dll      IA-64
   02-Feb-2005  17:46  5.2.3790.262      544,768  Wvssapi.dll      x86
   02-Feb-2005  17:46  5.2.3790.257       18,432  Wvss_ps.dll      x86
   02-Feb-2005  04:24  5.2.3790.262       59,392  Wws03res.dll     x86

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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For more information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base: For more information about related topics, click the following article numbers to view the articles in the Microsoft Knowledge Base:

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