The Dllhost.exe process crashes if you pass by value a user-defined type that contains a BSTR type

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SYMPTOMS
The Dllhost.exe process crashes if the following conditions are true:
  • A Microsoft COM+ component has a method with user-defined type as a parameter and the parameter is being passed by value.
  • The user-defined type contains a SAFEARRAY type that contains BSTR types.
  • The COM+ Hotfix Rollup Package 22 has been installed. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
    328924 Availability of the Windows 2000 Post-Service Pack 3 COM+ Hotfix Rollup Package 22
When these conditions exist, an access violation may occur when this COM+ component method is called, and the Dllhost.exe process dies.
RESOLUTION

How to obtain the hotfix

This issue is fixed in the Windows 2000 Server COM+ 1.0 Hotfix Package 28. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
828748 FIX: Availability of Windows 2000 Post-Service Pack 4 COM+ 1.0 Hotfix Rollup Package 28
STATUS
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section of this article.
kbWin2000preSP4COMRollup28Fix UDT
Properties

Article ID: 829201 - Last Review: 01/17/2015 05:23:55 - Revision: 1.2

  • Microsoft COM+ 1.0
  • kbnosurvey kbarchive kbqfe kbfix kbbug kbwin2000presp5fix KB829201
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