FIX: Memory Leak When You Use COM+ Queued Components (281396)


The information in this article applies to:

  • Microsoft COM+ 1.0, when used with:
    • the operating system: Microsoft Windows 2000
This article was previously published under Q281396

SYMPTOMS

When you are using COM+ Queued Components, you may experience a memory leak in the queued COM+ application.

CAUSE

When one FORMAT Name replaces another, the memory for the previous FORMAT Name is not properly released.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

This fix is included with the fixes that are described in the following Microsoft Knowledge Base article:

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3.

MORE INFORMATION

This memory leak appears only under the following circumstances:
  1. Client is accessing COM+ component A, which is not queued.
  2. Component A then calls into a queued component B, which has a method that takes two BSTR parameters of type BSTR.
  3. Under stress, when DIRECT FORMAT NAME is used to instantiate component B, there is a memory leak of 128 bytes for each call.
Modification Type:MajorLast Reviewed:9/19/2006
Keywords:kbbug kbfix kbWin2000PreSP2Fix kbWin2000sp3fix KB281396
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