Microsoft KB Archive/187746

= BUG: ERROR MESSAGE Function with ODBC Connection Causes Error =

Article ID: 187746

Article Last Modified on 3/3/2005

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APPLIES TO


 * Microsoft Visual FoxPro 5.0 Standard Edition
 * Microsoft Visual FoxPro 5.0a
 * Microsoft Data Access Components 2.5

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This article was previously published under Q187746



SYMPTOMS
Placing the ERROR MESSAGE function before or after an SQLCONN command causes Visual FoxPro 5.0x to perform an illegal operation under Windows NT 4.0. Under Windows 95, the following error appears:

This application has performed and illegal operation and will be shutdown.

Clicking the Details button reveals the following message:

VFP caused an invalid page fault in module at.



CAUSE
The behavior only occurs when the ERROR MESSAGE text is a null string. If any error occurs before SQLConnect is called, ERROR MESSAGE reports the text of the last error, and the code does not cause the memory protection fault.



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.



Steps to Reproduce Behavior
Create a program that contains the following code and run the program:

Note You will need to change User UID= and PWD= to the correct values before you run this code. Make sure that UID has the appropriate permissions to perform this operation on the database. #DEFINE connectionstring ; 'driver={sql server};server=sql;database=pubs;uid= ;pwd= ' connhand = SQLSTRINGCONNECT(connectionstring) = SQLDISCONN(connhand) ERROR MESSAGE  && causes error in VFP 5.0x After the code runs, the error described in the SYMPTOMS section appears.

Additional query words: kbDSupport KBDSE gpf hang crash kbVFp500bug kbODBC

Keywords: kbbug kbpending KB187746

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