Windows 95 ServiceProvider Priority Values Not Applied

This article was previously published under Q170619
This article has been archived. It is offered "as is" and will no longer be updated.
IMPORTANT: This article contains information about editing the registry.Before you edit the registry, you should first make a backup copy of theregistry files (System.dat and User.dat). Both are hidden files in theWindows folder.
When you configure the ServiceProvider Priority values in the registry tomodify the DNS search order, the search order may not seem to be changed.
A ServiceProvider registry key exists (with associated registry values)at the following registry location:
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP\    ServiceProvider				
However, the Winsock code incorrectly references the ServiceProviderregistry key at the following location:
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSTCP\    ServiceProvider				
To workaround this issue, use the following steps:WARNING: Using Registry Editor incorrectly can cause serious problemsthat may require you to reinstall Windows 95. Microsoft cannot guaranteethat problems resulting from the incorrect use of Registry Editor can besolved. Use Registry Editor at your own risk.

NOTE: For information about how to edit the registry, view the ChangingKeys And Values online Help topic in Registry Editor (Regedit.exe). Notethat you should make a backup copy of the registry files (System.dat andUser.dat) before you edit the registry.

Create the registry key being referenced by Winsock. To do so, use thefollowing steps:
  1. Use Regedit.exe to open the following location:
  2. On the Edit menu, point to New, and then click Key. Name the new key MSTCP.
  3. Click the new MSTCP key, point to New on the Edit menu, and then click Key. Name the new key ServiceProvider. The registry path should look like this:
          HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSTCP\       ServiceProvider						
  4. Click the new ServiceProvider key, point to New on the Edit menu, and then click Binary Value. Create the following new binary values:
        - DnsPriority    - LocalPriority    - HostsPriority    - NetbtPriority.						
  5. Set the priority values as appropriate.
This problem no longer occurs in Windows 98. To resolve this problem, install the current version of Windows. For information about the current version of Windows, visit
For additional information, see the following articles in the MicrosoftKnowledge Base:
158474 Windows TCP/IP Registry Entries
139270 How to Change Name Resolution Order on Windows 95 and Windows NT

Article ID: 170619 - Last Review: 10/07/2013 04:01:24 - Revision: 1.1

  • Microsoft Windows 95
  • Microsoft Windows 95
  • Microsoft Windows 95
  • Microsoft Windows 95
  • kbnosurvey kbarchive kbnetwork kbprb KB170619