Microsoft KB Archive/163165

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DNS Name Resolution May Not Work On Diskless Workstation

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Q163165

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The information in this article applies to:


 * Microsoft Windows 95

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IMPORTANT: This article contains information about editing the registry. Before you edit the registry, you should first make a backup copy of the registry files (System.dat and User.dat). Both are hidden files in the Windows folder.

SYMPTOMS
When you use the TCP/IP protocol with a server-based installation of Windows 95, 32-bit programs may be unable to resolve TCP/IP names using a DNS server. In some circumstances, it may be possible to resolve NetBIOS names or host names on the local DNS domain, but it may not be possible to resolve fully qualified domain names (such as "yourhost.yourdomain.dom").

CAUSE
Windows 95 may not be able locate the Wsock32.dll file when installed as a server-based installation. If this file is not found in the expected location, or if more than one copy of this file is found in the search path, DNS name resolution does not succeed.

RESOLUTION
WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows 95. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

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

To work around this problem, follow these steps:

 Create a System folder in the workstation's Windows folder, and then copy the Wsock32.dll file to the System folder. Repeat this step for each computer running a shared copy of Windows 95 on the network. Add an entry for the System folder (from step 1) to the PATH statement in the Autoexec.bat file. Rename or delete the Wsock32.dll file in the shared System folder, and in every other folder listed in the PATH statement. (You may want to remove unnecessary entries from the PATH statement.)  Make sure the following registry values point to the Wsock32.dll file in the System folder created in step 1:      Hkey_Local_Machine\System\CurrentControlSet\Services\VxD\Mstcp\ Parameters\Winsock\HelperDllName

Hkey_Local_Machine\System\CurrentControlSet\Services\VxD\Mstcp\ ServiceProvider\ProviderPath 

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

MORE INFORMATION
For additional information about a related issue, please see the following article in the Microsoft Knowledge Base:

"Q139060 Cannot Resolve TCP/IP Names with 32-Bit Programs" The workarounds documented in the above article may resolve some TCP/IP name resolution problems, but do not resolve the problem documented in this article.

Keywords : win95

Issue type : kbprb

Technology : kbWin95search kbWin95