DOCUMENT:Q182150  09-MAR-1998  [vbwin]
TITLE   :PRB: Visual Basic 5.0 Setup Error: DAO350.DLL File In Use
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:5.0
OPER/SYS:WINDOWS
KEYWORDS:vb5all VBKBEnv VBKBNet VBKBSetup VBKBVB

======================================================================
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The information in this article applies to:

 - Microsoft Visual Basic Learning, Professional, and Enterprise Editions
   for Windows, version 5.0
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SYMPTOMS
========

Setup of Visual Basic 5.0 fails with the following error:

   Setup cannot register DAO350.DLL because an older version is in use.

CAUSE
=====

The computer has a network installation of Office 97 with the shared files
(including DAO350.DLL) on the network server in a read-only folder.

RESOLUTION
==========

IMPORTANT: This article contains information about editing the registry.
Before you edit the registry, make sure you understand how to restore it if
a problem occurs. For information about how to do this, view the "Restoring
the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key"
Help topic in Regedt32.exe.

There are two primary solutions to this error:

1. Remove the registry key that points to the server directories. The
   Visual Basic 5.0 setup should proceed successfully. Copy the necessary
   files to the local drive, and remake the required registry entries. The
   other Office applications will not be affected.


      HKEY_LOCAL_MACHINE\Software\Microsoft\Shared Tools\DAO350

2. Perform the Visual Basic 5.0 installation only when all users are off
   the server and with update permissions on the server. Network
   administrative policies may not allow this option.

STATUS
======

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

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

The Visual Basic 5.0 setup process checks the registry for existing entries
to DAO files and attempts to update them. If located on the local drive,
DAO files would be placed in following location:

   Program Files\Common Files\Microsoft Shared\DAO\

If Office is installed with shared files residing on the network, the
folder with DAO350.DLL file is read-only, and the user may not have
permissions to write to that server directory. In this case, updates cannot
not be made and the setup process fails.

Microsoft Office97 installs DAO350.dll v3.50.3428 dated 11/17/96. Microsoft
Visual Basic 5.0 installs v3.50.3602 dated 12/5/96.

The registry key for the shared location of DAO 3.5 files is:

    HKEY_LOCAL_MACHINE\Software\Microsoft\Shared Tools\DAO350
======================================================================
Keywords          : vb5all VBKBEnv VBKBNet VBKBSetup VBKBVB
Technology        : dao
Version           : WINDOWS:5.0
Platform          : WINDOWS
Issue type        : kbprb

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

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Copyright Microsoft Corporation 1998.