Version Conflicts with Msdadc.dll and Msdaps.dll During Setup

ID: Q185029

The information in this article applies to:

Microsoft Internet Explorer version 4.01 for Windows 95
Microsoft Internet Explorer version 4.01 for Windows NT 4.0
Microsoft Personal Web Server version 4.0 for Windows 95
Microsoft Internet Information Server version 4.0

SYMPTOMS

If you install the Full Install option of Internet Explorer 4.01 on a computer on which Internet Information Server 4.0 or Personal Web Server 4.0 is installed, you receive the following version conflict messages and error messages:

Windows 95

Version Conflict A file being copied is older than the file currently on your computer. It is recommended that you keep your existing file.
Filename: Msdadc.dll Description: Microsoft OLE DB Data Conversion and Row
```
                Position Library
   Your version: 1.50.<version number>.

   Do you want to keep this file?
```
Version Conflict A file being copied is older than the file currently on your system. It is recommended that you keep your existing file.
Filename: Msdaps.dll Description: Microsoft OLE DB Proxy/Stub Library Your version: 1.50.<version number>.
Do you want to keep this file?

Windows NT

Confirm File Replace Source: <drive>:\Program Files\Common Files\System\ole db\<filename>.tmp Target: <drive>:\Program Files\Common Files\System\ole db\Msdadc.dll The target file exists and is newer than the source. Overwrite the newer file?
Confirm File Replace Source <drive>:\Program Files\Common Files\System\ole db\<filename>.tmp Target <drive>:\Program Files\Common Files\System\old db\Msdaps.dll The target file exists and is newer than the source. Overwrite the newer file?

After Active Setup restarts your computer, you receive the following error message:

   At least one service or driver failed during system startup.
   Use Event Viewer to examine the event log for details.

After Active Setup configures your personalized settings, you receive the following error message:

   Internet Explorer 4.0 Setup:
   Some services could not be started. Setup needs to reboot your
   system in order to start the services.

After you click OK to restart your computer again, you do not receive any error messages, but you may see the following error message in the system log in Event Viewer:

   Event ID: 7003
   Source: Service Control Manager
   Description: The IIS Admin Service service depends on the following
   nonexistent service: ProtectedStorage

CAUSE

This problem occurs because the versions of Internet Explorer listed above include a version of the Msdadc.dll file and the Msdaps.dll file that is earlier than the versions included with Microsoft Windows NT 4.0 Option Pack and used by Internet Information Server 4.0 and Personal Web Server 4.0.

In Windows NT, the IIS Admin service does start on the first reboot during Active Setup because it depends on the Protected Storage service which is not yet configured by Internet Explorer. As a result, Active Setup prompts you to restart your computer a second time so both of these services can be loaded.

RESOLUTION

To cause the IIS Admin service to load successfully, restart your computer when you are prompted to do so.

To work around the version conflict messages with the Msdadc.dll file and Msdaps.dll file, click No (in Windows NT) or Yes (in Windows 95) to keep your existing files. If you replace the existing files, you need to either re-extract the Msdadc.dll file and the Msdaps.dll file from the Windows NT 4.0 Option Pack, or install Windows NT 4.0 Option Pack again.

To extract the Msdadc.dll file and Msdaps.dll file from the Windows NT 4.0 Option Pack, follow the steps in the appropriate section below:

Windows NT 4.0 Option Pack CD-ROM

If you have the CD-ROM version of the Windows NT 4.0 Option Pack, follow these steps:

1. At a command prompt, change to the <cd-rom>:\ntoptpak\en\x86\<operating

   system> folder, where <cd-rom> is your CD-ROM drive containing your
   Windows NT 4.0 Option Pack CD-ROM, and <operating system> is the
   Win.95, Winnt.SRV, or Winnt.WKS folder.

NOTE: The following lines are wrapped for readability purposes. Type each line as a single line when you follow these steps.

2. To extract a new copy of the Msdadc.dll file, type the following

   command, and then press ENTER

   Windows 95:

      extract oledb.cab msdadc.dll /l <drive>:\progra~1\common~1\ 
         system\oledb~1

   Windows NT:

      extract oledb.cab msdadc.dll /l <drive>:\progra~1\common~1\ 
         system\oledb~1

   where <drive> is the drive on which Windows 95 or Windows NT is
   installed.

3. To extract a new copy of the Msdaps.dll file, type the following

   command, and then press ENTER

   Windows 95:

      extract oledb.cab msdaps.dll /l <drive>:\progra~1\common~1\ 
         system\oledb~1

   Windows NT:

      extract oledb.cab msdaps.dll /l <drive>:\progra~1\common~1\ 
         system\oledb~1

   where <drive> is the drive on which Windows 95 or Windows NT is
   installed.

4. Type "exit" (without quotation marks), and then press ENTER.

Windows NT 4.0 Option Pack Downloaded from Microsoft's Web Site

If you downloaded Windows NT 4.0 Option Pack from Microsoft's Web site, follow these steps:

1. At a command prompt, change to the folder in which you downloaded

   the Windows NT Option Pack.

NOTE: The following lines are wrapped for readability purposes. Type each line as a single line when you follow these steps.

2. To extract a new copy of the Msdadc.dll file, type the following

   command, and then press ENTER

   Windows 95:

      extract oledb.cab msdadc.dll /l <drive>:\progra~1\common~1\ 
         system\oledb~1

   Windows NT:

      extract oledb.cab msdadc.dll /l <drive>:\progra~1\common~1\ 
         system\oledb~1

   where <drive> is the drive on which Windows 95 or Windows NT is
   installed.

3. To extract a new copy of the Msdaps.dll file, type the following

   command, and then press ENTER

   Windows 95:

      extract oledb.cab msdaps.dll /l <drive>:\progra~1\common~1\ 
         system\oledb~1

   Windows NT:

      extract oledb.cab msdaps.dll /l <drive>:\progra~1\common~1\ 
         system\oledb~1

   where <drive> is the drive on which Windows 95 or Windows NT is
   installed.

4. Type "exit" (without quotation marks), and then press ENTER.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Internet Explorer 4.01 and Internet Explorer 4.01 Service Pack 1.

MORE INFORMATION

The Msdadc.dll file and Msdaps.dll file are located in the Ie4data.cab cabinet file included with Internet Explorer 4.0 and 4.01. The following table lists the version, size, and date of these files for each version of Internet Explorer and Windows NT 4.0 Option Pack:

   Filename     Version        Size    Date      Product
   -----------------------------------------------------------------------
   Msdadc.dll   1.50.3206.00   44,816  8/6/97    Internet Explorer 4.0
   Msdaps.dll   1.50.3206.00   8,160   8/6/97    Internet Explorer 4.0

   Msdadc.dll   1.50.3401.00   45,328  10/1/97   Internet Explorer 4.01
   Msdaps.dll   1.50.3401.00   8,160   10/1/97   Internet Explorer 4.01

   Msdadc.dll   1.50.3401.00   45,328  10/6/97   Internet Explorer 4.01
                                                 Service Pack 1
   Msdaps.dll   1.50.3401.00   8,160   10/6/97   Internet Explorer 4.01
                                                 Service Pack 1

   Msdadc.dll   1.50.3506.00   47,600  11/6/97   Windows NT 4.0 Option
                                                  Pack
   Msdaps.dll   1.50.3506.00   14,336  11/6/97   Windows NT 4.0 Option
                                                  Pack

Keywords          : kberrmsg kbsetup mspwsw95 msiew95 msient ie4sp1 
Version           : WINDOWS:4.0,4.01; WINNT:4.0
Platform          : WINDOWS winnt
Issue type        : kbprb

Last Reviewed: March 18, 1999