Microsoft KB Archive/289778

= Error Message: Winsock Proxy Client Is Not Properly Installed =

Article ID: 289778

Article Last Modified on 3/1/2007

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APPLIES TO


 * Microsoft Windows 2000 Professional Edition
 * Microsoft Proxy Server 1.0 Standard Edition
 * Microsoft Proxy Server 2.0 Standard Edition
 * Microsoft Windows Millennium Edition

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This article was previously published under Q289778



SYMPTOMS
When you click WSPClient in Control Panel, you may receive the following error message:

Winsock Proxy client is not properly installed



CAUSE
This behavior can occur because the installation of Proxy 1.0 Client or Proxy 2.0 Client on Winsock 1.1 replaces the Winsock .dll files that add remote Winsock functionality. However, in Windows 2000, Windows File Protection prevents replacement of the .dll files.



RESOLUTION
To resolve this behavior, upgrade the Proxy Server and Proxy Client to version 2.0.



STATUS
Microsoft has confirmed this to be a problem in Microsoft Windows 2000.



MORE INFORMATION
When you install Proxy 2.0 Client on a computer running Winsock 2.0, it leaves the existing .dll files and is implemented as a Winsock Layered Service Provider, intercepting Winsock calls. Windows 2000 supports Proxy 2.0 Client.

Keywords: kbprb KB289778

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