FIX: An access violation occurs in Comsvcs.dll when you run a COM+ application on a Windows 2000-based computer

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SYMPTOMS

When you start a Microsoft COM+ application on a Microsoft Windows 2000-based computer, an access violation may occur in Comsvcs.dll. No event is logged in Event Viewer when this problem occurs.

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CAUSE

This problem occurs because Comsvcs.dll may not correctly initialize a critical section. The access violation occurs when the system tries to delete this improperly initialized critical section.

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This issue is fixed in the COM+ hotfix rollup package that is discussed in Microsoft Knowledge Base article 896720. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

896720 (http://support.microsoft.com/kb/896720/ ) Availability of Windows 2000 Post-Service Pack 4 COM+ 1.0 Hotfix Rollup Package 33

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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.

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, submit a request to 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:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)

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

You must have Microsoft Windows 2000 Service Pack 4 (SP4) installed to apply this hotfix.

Restart information

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix is not replaced by any later hotfix.

Hotfix 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 tool in Control Panel.

   Date         Time   Version          Size       File name 
   ------------------------------------------------------------
   08-Apr-2005  09:01  2000.2.3520.0      169,232  Catsrv.dll
   08-Apr-2005  09:01  2000.2.3520.0      596,240  Catsrvut.dll
   08-Apr-2005  09:01  2000.2.3520.0       97,040  Clbcatex.dll
   08-Apr-2005  09:01  2000.2.3520.0      553,744  Clbcatq.dll
   08-Apr-2005  09:01  2000.2.3520.0       41,744  Colbact.dll
   08-Apr-2005  09:01  2000.2.3520.0      198,416  Comadmin.dll
   08-Apr-2005  09:01  2000.2.3520.0       97,552  Comrepl.dll
   08-Apr-2005  09:01  2000.2.3421.352    342,288  Comsetup.dll
   08-Apr-2005  09:01  2000.2.3520.0    1,471,248  Comsvcs.dll
   08-Apr-2005  09:01  2000.2.3520.0      625,936  Comuid.dll
   06-Apr-2005  05:54                       9,884  Dtcsetup.cat
   06-Apr-2005  05:54  2000.2.3520.0    1,842,656  Dtcsetup.exe
   15-Nov-2001  23:27                       5,149  Empty.cat
   08-Apr-2005  09:01  2000.2.3520.0      242,448  Es.dll
   08-Apr-2005  09:01  2000.2.3520.0       96,016  Msdtclog.dll
   08-Apr-2005  09:01  2000.2.3520.0      725,776  Msdtcprx.dll
   08-Apr-2005  09:01  2000.2.3520.0    1,205,008  Msdtctm.dll
   08-Apr-2005  09:01  2000.2.3520.0      153,872  Msdtcui.dll
   06-Apr-2005  09:15  2000.2.3520.0      155,408  Mtstocom.exe
   08-Apr-2005  09:01  2000.2.3520.0       52,496  Mtxclu.dll
   08-Apr-2005  09:01  2000.2.3520.0       26,896  Mtxdm.dll
   08-Apr-2005  09:01  2000.2.3520.0       35,600  Mtxlegih.dll
   08-Apr-2005  09:01  2000.2.3520.0      122,640  Mtxoci.dll
   08-Apr-2005  09:01  5.0.2195.7036      957,712  Ole32.dll
   08-Apr-2005  09:01  5.0.2195.7009       69,392  Olecli32.dll
   08-Apr-2005  09:01  5.0.2195.7035       36,624  Olecnv32.dll
   08-Apr-2005  09:01  5.0.2195.7020      437,008  Rpcrt4.dll
   08-Apr-2005  09:01  5.0.2195.7035      212,240  Rpcss.dll
   07-Feb-2005  05:35  5.0.2195.7026    6,301,696  Sp3res.dll
   25-Feb-2005  17:43  6.1.22.4            13,536  Spmsg.dll
   25-Feb-2005  17:43  6.1.22.4           209,632  Spuninst.exe
   08-Apr-2005  09:01  2000.2.3520.0       71,440  Stclient.dll
   08-Apr-2005  09:01  2000.2.3520.0      398,608  Txfaux.dll
   08-Apr-2005  09:01  2000.2.3520.0       19,216  Xolehlp.dll

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STATUS

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

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MORE INFORMATION

For more information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the following article number to view the article in the Microsoft Knowledge Base:

265173 (http://support.microsoft.com/kb/265173/ ) The Datacenter Program and Windows 2000 Datacenter Server product

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

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