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Q185992: PRB: "Wrong Version Of Run-Time DLL" When Starting Application

Article: Q185992
Product(s): Microsoft Visual Basic for Windows
Version(s): WINDOWS:5.0
Operating System(s): 
Keyword(s): kbGrpDSVB
Last Modified: 11-JAN-2001

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The information in this article applies to:

- Microsoft Visual Basic Control Creation Edition for Windows, version 5.0 
- Microsoft Visual Basic Learning Edition for Windows, version 5.0 
- Microsoft Visual Basic Professional Edition for Windows, version 5.0 
- Microsoft Visual Basic Enterprise Edition for Windows, version 5.0 
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SYMPTOMS
========

When starting a Visual Basic 5.0 application, you might receive the following
error dialog box:

  Error
  "Wrong Version Of Run-Time DLL"

CAUSE
=====

The wrong version of the run-time file, Msvbvm50.dll, is installed on the target
machine.

RESOLUTION
==========

The most recent version of Msvbvm50.dll must be installed.

To resolve this problem, install a Visual Basic 5.0 application built using the
Application Setup Wizard onto the target machine, or manually copy the most
recent version of Msvbvm50.dll into the System directory (or System32 for NT
machines) and register it using RegSvr32.Exe.

To register the run-time file manually, use RegSvr32.Exe (shipped on the Visual
Basic CD in the OS\System and Tools\RegUtils directories) as demonstrated
below:

1. On the Windows Start menu, click Run.

2. Type in the following and press ENTER:

  RegSvr32.Exe MSVBVM50.DLL

  You should see a message similar to the following:

  "DLLRegisterServer in C:\Windows\System\MSVBVM50.DLL succeeded"

3. If you do not see this message, please make sure you have the most recent
  version of Msvbvm50.dll and you have RegSvr32.Exe installed in the Windows
  System or System32 folder.

  NOTE: It is also possible to obtain all of the latest run-time files by
  installing the self extracting EXE referred to in the following Microsoft
  Knowledge Base article:

  Q180071 : FILE: Msvbvm50.exe Installs Visual Basic 5.0 Run-Time Files

STATUS
======

This behavior is by design.

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

The Application Setup Wizard should always be used to distribute your Visual
Basic 5.0 applications (or an equivalent third-party distribution tool). This
ensures that the necessary support files are brought along and installed on the
target system.

When compiling a Visual Basic program, the final output requires either the
run-time file that is installed upon the development system (or a more recent
run-time file). Older applications are not broken by newer versions of the
run-time file, but newer applications are broken by older versions of the
run-time file.

However, sometimes the wrong version Visual Basic 5.0 run-time file can still be
installed on a system and lead to the above error message. If the NT Option 4.0
or Internet Information Server 4.0 is installed, there is the chance that an
older version of the run-time file will be installed.

There are currently two versions of the Visual Basic 5.0 run-time file:

    Run-Time File     Version           Ships With
    -------------------------------------------------------------------
    Msvbvm50.dll      5.00.3724         Visual Basic 5.0
                                        Visual Studio 97
                                        NT Option Pack 4.0
                                        Internet Information Server 4.0

    Msvbvm50.dll      05.00.4319 (SP2)  Visual Studio Service Pack 2
                                        Visual Studio Service Pack 3

If you have installed the most recent version of the Visual Basic 5.0 run- time
file, installing either the NT Option Pack 4 or Internet Information Server 4.0
results in the older version of the run-time file replacing the most recent
version, and all Visual Basic 5.0 applications compiled under Service Pack 2 or
3 will break.

Additional query words: kbDSupport kbdss kbAppSetup

======================================================================
Keywords          : kbGrpDSVB 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB500Search kbVBA500Search kbVBA500 kbVB500 kbZNotKeyword3
Version           : WINDOWS:5.0
Issue type        : kbprb

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

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