BUG: MTS Connection Pooling Problem with Visual Basic 5.0

ID: Q180221

The information in this article applies to:

• Microsoft Transaction Server 1.0
• Microsoft Visual Basic Professional and Enterprise Editions for Windows, version 5.0

SYMPTOMS

Microsoft Transaction Server (MTS) does not correctly pool database connections when using RDO 2.0 after installing Visual Basic 5.0 Service Pack 2. A new connection is created with each call to the database instead of using the already existing connections.

RESOLUTION

The two resolutions are listed below:

• Install ODBC version 3.5.

  -or-

• Edit your Data Source through the ODBC administrator. Find the check box 'Create temporary stored procedures for prepared SQL statements' and clear it. Use this Data Source Name (DSN) to connect to the database. Do not use a DSN-less connection.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

If you are using SQL Server you can use the SQL Performance Monitor (Perfmon.exe) to check your active connections. If connection pooling is not working, you will see the User Connections counter increase by one each time you activate a method that uses RDO from your MTS server application.

Keywords          : TSrvConnect 
Version           : WINDOWS:5.0; WINNT:1.0
Platform          : WINDOWS winnt
Issue type        : kbbug
Solution Type     : kbpending

Last Reviewed: February 10, 1998