Microsoft KB Archive/915841

= FIX: COMTI transactions may stop working correctly after you apply a Host Integration Server 2000 post-SP2 COMTI update =

Article ID: 915841

Article Last Modified on 7/26/2006

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APPLIES TO


 * Microsoft Host Integration Server 2000 Standard Edition

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SYMPTOMS
After you apply a Microsoft Host Integration Server 2000 post-Service Pack 2 (SP2) COMTI update, Microsoft Component Object Model (COM) Transaction Integrator (COMTI) transactions may stop working correctly.

This problem affects COMTI transactions that use remote environments (REs) when the RE has the following configuration:
 * The RE type is Information Management Systems (IMS) over open transaction management architecture (OTMA).
 * The RE is configured to authenticate by using user credentials or package credentials.
 * The RE is configured to use a Host Security Domain to obtain the user’s host credentials from a Host Account Cache database.

When this problem occurs, an event that is similar to the following may be logged: Event ID: 102

Source: COMTI

Description: (102) COM Transaction Integrator reported the following exception to the client:

Component:

Method:

Exception description: (2168) The TCP transport received an error message from IMS when using IMS Connect or OTMA. Message=DFS1292E SECURITY VIOLATION, Transaction. IP Address:, port:.

The actual exception description may vary, depending on the specific operating environment. The description may also vary depending on the IBM security subsystem configuration. For example, the description will differ if the configuration uses IBM Resource Access Control Facility (RACF) security or Computer Associates ACF2 security.



CAUSE
This problem occurs because COMTI incorrectly uses NULL (EBCDIC X’00’) characters to pad the host user name and password when the host user name and password are less than eight characters long.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Host Integration Server 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

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.

Note Because of file dependencies, the most recent hotfix that contains these files may contain additional files.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
After you apply this hotfix, COMTI uses SPACE (EBCDIC X’40’) characters to pad any host user name and password that are less than eight characters long.

For more information about a similar issue that occurs with COMTI transactions that use REs when the REs support explicit security to connect to IMS applications over TCP/IP, click the following article number to view the article in the Microsoft Knowledge Base:

912002 FIX: COMTI transactions may fail when you apply a Host Integration Server 2000 post-S COMTI update



The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Keywords: kbexpertiseinter kbhotfixserver kbqfe kbcomti kbfix kbbug kbpubtypekc KB915841

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