DOCUMENT:Q190211  02-MAY-2001  [vbwin]
TITLE   :PRB: Problems with Visual Basic 5.0 and 6.0 on the Same System
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER::5.0,6.0
OPER/SYS:
KEYWORDS:kbsetup kbConfig kbVBp500 kbVBp600 kbGrpDSVB kbDSupport

======================================================================
-------------------------------------------------------------------------------
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 
-------------------------------------------------------------------------------


SYMPTOMS
========

Installing Visual Basic 6.0 on a computer without uninstalling the existing
Visual Basic 5.0 may cause both products to function improperly. This article
describes some of the possible problems that can occur.

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

Because Visual Basic 5.0 and Visual Basic 6.0 employ the same license keys and
names for some files, conflict can arise if a machine has both of them
installed.

After installing Visual Basic 6.0 on a machine that already has Visual Basic 5.0
installed, both the Application Performance Explorer (APE) and the T-SQL
Debugger in Visual Basic 5.0 will not work properly. Please see Scenario 3 below
for more information.


Visual Basic 6.0 will work without noticeable problems. Although the Add-In
Manager DialogBox will list duplicated entries, these entries are
distinguishable by Visual Basic 5.0 and Visual Basic 6.0. If Visual Basic 5.0 is
uninstalled, the following components will no longer work properly in Visual
Basic 6.0:

 - APE

 - Visual Data Manager (Visdata)

 - T-SQL Debugger

 - Remote Data Control (MSRDC)

If Visual Basic 6.0 is uninstalled, APE, Visdata, and API Viewer might not work
properly in Visual Basic 5.0.


Following are scenarios of some possible problems:

Scenario 1
----------

1. Install Visual Basic 5.0.

2. Install Visual Basic 6.0.

3. In the Control Panel, select Add/Remove Programs, and then select Visual
   Basic 5.0 for Removal. Note that the APE, VisData, and T-SQL Debugger are not
   working, and MSRDC reports that it loses its license to run.

Scenario 2
----------

1. Install Visual Basic 5.0.

2. Install Visual Basic 6.0.

3. In Control Panel, select Add/Remove Programs, and then select Visual Basic
   6.0 for Removal. Note that the APE, Visdata, and API Viewer do not work
   properly.

Scenario 3
----------

1. Install Visual Basic 5.0.

2. Install Visual Basic 6.0.

3. Run Visual Basic 5.0 and start APE. An error message is received about an
   incorrect version of aesvrmgr.exe.

REFERENCES
==========

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

   Q217017 INFO: Visual Basic 5.0 and 6.0 Compatibility Issues

   Q221990 PRB: Cannot Add Windows Common Controls or Common Dialog Control to
   Project

Additional query words:

======================================================================
Keywords          : kbsetup kbConfig kbVBp500 kbVBp600 kbGrpDSVB kbDSupport 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB500Search kbVB600Search kbVBA500 kbVBA600 kbVB500 kbVB600
Version           : :5.0,6.0
Issue type        : kbprb

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 2001.