ODBC Error After Multiple Connections and Disconnections

ID: Q154496


The information in this article applies to:
  • Microsoft Windows 95


SYMPTOMS

When you are running ODBC applications using Microsoft ODBC drivers, you may receive the following error message:

General error
Failed to get the expression service


CAUSE

This error can occur if ODBC applications connect to and disconnect from the server repeatedly (over 50-60 times).

An example of such an application may be an Internet Web server applica- tion that is publishing ODBC data. For each Web-page-based query, the Web server may be opening a connection to the ODBC data source, processing the query, and then disconnecting from the data source.


STATUS

Microsoft has confirmed this to be a problem in Microsoft Windows 95. An update to address this problem is now available, but is not fully regression tested and should be applied only to computers experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft does not recommend implementing this update at this time. Contact Microsoft Technical Support for additional information about the availability of this update.

This issue is resolved by the following updated file for Windows 95:


   Rpcrt4.dll version 4.00.953 (dated 7/23/96) and later 
To install this update, follow these steps:
  1. Download the Rpcrtupd.exe file from the Microsoft Software Library to an empty folder.


  2. In My Computer or Windows Explorer, double-click the Rpcrtupd.exe file you downloaded in step 1.


  3. Follow the instructions on the screen.


The following file is available for download from the Microsoft Download Center. Click the file name below to download the file:
Rpcrtupd.exe
For more information about how to download files from the Microsoft Download Center, please visit the Download Center at the following Web address
http://www.microsoft.com/downloads/search.asp
and then click How to use the Microsoft Download Center.

The following files are installed by Rpcrtupd.exe:

   File name     Version    Date/Time        Size     Destination folder
   ----------------------------------------------------------------------
   Rpcrt4.dll    4.00.953   7/23/96 9:53a    202,752  Windows\System 

This issue is resolved in Microsoft Windows 98.


MORE INFORMATION

For additional information about issues resolved by updates to this component, please see the following articles in the Microsoft Knowledge Base:

Q149846 RPC Program Fails When Server Run Down Occurs

Additional query words:

Keywords : kberrmsg kbfile kbnetwork win95
Version : WINDOWS:95
Platform : WINDOWS
Issue type :


Last Reviewed: January 13, 2000
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