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Q316938: Active Server Pages with ODBC Driver for DB2 Causes Creation of

Article: Q316938
Product(s): Microsoft SNA Server
Version(s): 4.0 SP3,4.0 SP4
Operating System(s): 
Keyword(s): 
Last Modified: 17-MAY-2002

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The information in this article applies to:

- Microsoft SNA Server, versions 4.0 SP3, 4.0 SP4 
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SYMPTOMS
========

Microsoft Internet Information Server (IIS) enters a recursive loop and creates
more than 7,000 threads under the following circumstances:

- A Microsoft Active Server Pages (ASP) program uses ActiveX Data Objects (ADO)
  and Microsoft ODBC Driver for DB2 to retrieve data.

  -and-

- The ASP page runs in Isolated or Pooled Out-of-Process mode on Microsoft
  Windows 2000.

  -or-

- The ASP page runs in Out-of-Process mode on Microsoft Windows NT 4.0 Service
  Pack 6a.

The first ASP request completes and returns a result to the client. However, when
the Web Application Manager (WAM) cleans up after the request, WAM enters a
recursive loop that ends only when the system runs out of resources or when the
CacheCreateThread function stops responding.

CAUSE
=====

This problem occurs because the ODBC Driver for DB2 incorrectly calls the
CoInitializeEx function on a newly created thread.

RESOLUTION
==========

Microsoft recommends that you use the Microsoft OLE DB Provider for DB2 instead
of ODBC Driver for DB2.

STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft products that are
listed at the beginning of this article.


MORE INFORMATION
================

For additional information about ODBC Driver for DB2 and OLE DB Provider for
DB2, click the article numbers below to view the articles in the Microsoft
Knowledge Base:

  Q282472 IIS May Stop Responding or Terminate When You Use OLE DB Provider for
  DB2

  Q247375 Inetinfo.exe Ends with MTS Event 4097 Using Microsoft ODBC for DB2

Additional query words: OOP

======================================================================
Keywords          :  
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ400SP3 kbSNAServ400SP4
Version           : :4.0 SP3,4.0 SP4
Issue type        : kbbug
Solution Type     : kbnofix

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