Buffer Overrun Exception in Psqlodbc35w.dll: How to Fix the Issue

When working with database applications, it is not uncommon to encounter unexpected crashes or errors. One such issue is a buffer overrun exception in psqlodbc35w.dll, which can occur when using the PostgreSQL ODBC driver (psqlodbc) with Visual FoxPro applications on Windows 7.

The Error Message

The error message typically appears as follows:

'Psqlodbc35w.dll!SQLGetDiagFieldW(short fHandleType, void * handle, short iRecord, short fDiagField, void * rgbDiagInfo, short cbDiagInfoMax, short * pcbDiagInfo) Line 374 + 0x16 bytes C'

This message indicates that the error occurred in the psqlodbc35w.dll file at line 374.

Causes of the Error

The buffer overrun exception is usually caused by a mismatch between the size of the buffer and the amount of data being written to it. In this case, the issue may be related to the way the PostgreSQL ODBC driver interacts with Visual FoxPro applications on Windows 7.

How to Fix the Issue

To resolve this issue, you can try the following steps:

1. Update Psqlodbc: Ensure that you are using the latest version of psqlodbc. You can download the latest version from the PostgreSQL website.

2. Check Buffer Sizes: Verify that the buffer sizes are correctly set in your application code. Make sure that the buffer is large enough to hold the expected amount of data.

3. Disable Debugging: Try disabling debugging in Visual Studio 2015 Community Edition to see if it resolves the issue. You can do this by going to 'Debug' > 'Options and Settings' > 'Debugging' and unchecking the box next to 'Enable .NET framework debugging'.

4. Rebuild Psqlodbc: If the issue persists, you may need to rebuild psqlodbc with debug information enabled. This will allow you to debug the issue further.

5. Contact Support: If none of the above steps resolve the issue, you can contact the PostgreSQL support team or seek assistance from a professional developer.

In conclusion, a buffer overrun exception in psqlodbc35w.dll is a common error that can occur when using the PostgreSQL ODBC driver with Visual FoxPro applications on Windows 7. By following the steps outlined above, you should be able to resolve this issue and get your application up and running again.

Stop code driver overran stack buffer