BUG: IPF When Replacing Class Module with UserControl (191083)


The information in this article applies to:

  • Microsoft Visual Basic Learning Edition for Windows 6.0
  • Microsoft Visual Basic Professional Edition for Windows 6.0
  • Microsoft Visual Basic Enterprise Edition for Windows 6.0
This article was previously published under Q191083

SYMPTOMS

When replacing a Class module with a UserControl in an ActiveX Control project that has Binary Compatibility set, an Invalid Page Fault (IPF) in module VBA6.dll will occur.

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

Steps To Reproduce Behavior

  1. Start a new ActiveX Control project in Visual Basic.
  2. From the Project menu, click Add Class Module. Class1 is created.
  3. Paste the following code into Class1: 
          Public a As Class1
  4. From the File menu, click Make Project1.ocx to compile the project.
  5. Select Project1 Properties from the Project menu. From the Component tab choose Binary Compatibility.
  6. Remove Class1.
  7. Select Add User Control from the Project menu to create a new UserControl. UserControl2 is created.
  8. Rename UserControl2 to Class1.
  9. Paste the following code into Class1: 
          Public a As Class1
  10. Compile as Project2.ocx.
The following error occurs:
VB caused an Invalid Page Fault in module VBA6.dll
Modification Type:MajorLast Reviewed:5/13/2003
Keywords:kbBug kbide kbpending KB191083
©2002 Microsoft Corporation. All rights reserved.