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Q217017: INFO: Visual Basic 5.0 and 6.0 Compatibility Issues

Article: Q217017
Product(s): Microsoft Visual Basic for Windows
Version(s): 5.0,6.0
Operating System(s): 
Keyword(s): kbwizard kbAppSetup kbVBp500 kbVBp600
Last Modified: 11-JUN-2002

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The information in this article applies to:

- Microsoft Visual Basic Learning Edition for Windows, versions 5.0, 6.0 
- Microsoft Visual Basic Professional Edition for Windows, versions 5.0, 6.0 
- Microsoft Visual Basic Enterprise Edition for Windows, versions 5.0, 6.0 
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SUMMARY
=======

IMPORTANT: This article contains information about modifying the registry.
Before you modify the registry, make sure to back it up and make sure that you
understand how to restore the registry if a problem occurs. For information
about how to back up, restore, and edit the registry, click the following
article number to view the article in the Microsoft Knowledge Base:

  Q256986 Description of the Microsoft Windows Registry

This article summarizes the compatibility issues between Visual Basic version 5.0
and 6.0.

MORE INFORMATION
================

Following are the known compatibility issues between Visual Basic 5.0 and 6.0:

- Running the Visual Basic 5.0 Setup Wizard on a system with both Visual Basic
  5.0 and Visual Basic 6.0 installed.

  While you can develop a Visual Basic 5.0 application in a system with both
  Visual Basic 5.0 and 6.0 installed, you should only create a deployment
  package for your Visual Basic 5.0 application on a clean system with only
  Visual Basic 5.0 installed.

  When Visual Basic 6.0 is installed on the same system as Visual Basic 5.0, all
  the controls installed by Visual Basic 5.0 are updated. The updated controls
  may cause a problem when you run the Visual Basic 5.0 Setup Wizard to create
  a deployment package for your Visual Basic 5.0 application due to different
  dependencies.

  To create a deployment package for a Visual Basic 5.0 application, run the
  Visual Basic 5.0 Setup Wizard on a system containing only Visual Basic 5.0 so
  that the appropriate controls are included in your deployment package.

For additional information about other potential conflicts, click the article
numbers below to view the articles in the Microsoft Knowledge Base:

  Q190253 INFO: VB6 Designers Do Not Work in VB5

  Q190080 PRB: VBCE 5.0 on Same Machine as VB6 Causes Application Error

  Q192934 PRB: Error "The Jet VBA File...Failed to Initialize When Called"

- The following error message displays when you attempt to use the Microsoft
  Windows Common Controls 5.0 (Comctl32.ocx) in a Visual Basic 5.0 project. The
  system once had Visual Basic 6.0 installed:

  Could Not Be Loaded - Adding component to project

  This error message occurs when you install a newer version of an ActiveX
  control, uninstall it, and then install an older version of the same ActiveX
  control. The registry key for the newer version of the ActiveX control
  remains in the registry and Visual Basic 5.0 is now trying to use that
  registry key.

  WARNING: If you use Registry Editor incorrectly, you may cause serious
  problems that may require you to reinstall your operating system. Microsoft
  cannot guarantee that you can solve problems that result from using Registry
  Editor incorrectly. Use Registry Editor at your own risk.

  To resolve this issue:

   - Delete the TypeLib Registry Key for the ActiveX Control and then
     re-register the control using RegSvr32.exe.

For additional information about how to delete a registry key and re-register an
ActiveX control, click the article number below to view the article in the
Microsoft Knowledge Base:

  Q217180 HOWTO: Delete and Re-register the TypeLib GUID for an ActiveX Control

- When attempting to create a Visual Basic Application Wizard project in the
  Visual Basic 6.0 Learning Edition you receive the following message:

  You do not have the proper license to load the VB 98 Application Wizard. You
  must have the Learning, Professional, or Enterprise edition of Visual Basic
  installed.

  This is caused by having the Visual Basic 5.0 Control Creation Edition
  installed on the same system.

For additional information, click the article number below to view the article in
the Microsoft Knowledge Base:

  Q220816 BUG: Application Wizard License Not Found

(c) Microsoft Corporation 1999, All Rights Reserved. Contributions by Arsenio
Locsin, Microsoft Corporation.


REFERENCES
==========

For additional information, please see the following article in the Microsoft
Knowledge Base:

  Q190211 PRB: Problems With Visual Basic 5.0 and 6.0 on Same System

Additional query words:

======================================================================
Keywords          : kbwizard kbAppSetup kbVBp500 kbVBp600 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB500Search kbVB600Search kbVB500 kbVB600
Version           : :5.0,6.0
Issue type        : kbinfo

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