Article ID: 889178 - View products that this article applies to.
Consider the following scenario. In Microsoft Windows XP Professional, a Microsoft COM+ object that uses the CoCreateInstanceEX function is instantiated in a COM+ application. When you try to cancel a COM+ method by using the CoCancelCall function, you may experience system freeze-like symptoms.
Note This problem occurs after you restart the server side of the COM+ application.
This problem occurs because a race condition exists between the following:
Hotfix informationA 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:
PrerequisitesMicrosoft Windows XP Professional Service Pack 2 (SP2)
Restart requirementYou must restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe 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 -------------------------------------------------------- 24-Mar-2005 21:14 5.1.2600.2621 1,241,088 Ole32.dll 24-Mar-2005 21:11 5.1.2600.2621 555,520 Rpcrt4.dll 24-Mar-2005 21:14 5.1.2600.2621 256,000 Rpcss.dll
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
The following sequence of events occurs between the client and the server:
(http://support.microsoft.com/kb/824684/ )Description of the standard terminology that is used to describe Microsoft software updates