Knowledge Base

PRB: Abnormal Termination When Instantiate Object from VCX

Article ID: 142192

Article Last Modified on 12/1/2003

Microsoft Visual FoxPro 3.0 Standard Edition
Microsoft Visual FoxPro 3.0b Standard Edition
Microsoft Visual FoxPro 5.0 Standard Edition
Microsoft Visual FoxPro 6.0 Professional Edition

This article was previously published under Q142192

SYMPTOMS

After instantiating an object from a corrupt .vcx file, Visual FoxPro may stop responding and return to Program Manager in Windows 3.x and Windows for Workgroups 3.x. Under Windows 95 and Windows NT, the following error messages are displayed respectively:

Windows 95:

This program has performed an illegal operation and will be shut down. If the problem persists, contact the program vendor.

An application error has occurred and an application error log is being generated. VFP.exe Exception: access violation

CAUSE

The Visual Class Library Files (.vcx and .vct files) may be corrupt.

RESOLUTION

Replace or recreate the corrupted Visual Class Library files.

STATUS

Microsoft is researching this behavior and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps to Reproduce Behavior

Set CLASSLIB to CorruptVCX.
Assign oObject to CREATEOBJECT("ClassName").

Create a new form.
Click the View Classes tool, and choose Add.
Select the CorruptVCX.
Add an object from the CorruptVCX to the form.

Additional query words: VFoxWin bad

Keywords: KB142192