Registrations are now open. Join us today!
There is still a lot of work to do on the wiki yet! More information about editing can be found here.
Already have an account?

Microsoft KB Archive/172021

From BetaArchive Wiki
Knowledge Base

Err Msg: HTTP Filter DLL C:\MEMBER~1\prxyfltr.dll Failed

Article ID: 172021

Article Last Modified on 9/30/2003


  • Microsoft Commercial Internet System 1.0 Service Pack 2

This article was previously published under Q172021


A STOP error is reported in the Event Log. The error message reads:

The HTTP Filter DLL C:\MEMBER~1\prxyfltr.dll failed to load.

The data is the error. No error message (such as, a service failed to start) comes up.


The problem has to do exclusively with Microsoft Commercial Internet System Service Pack 1 (SP1) code. During the installation of the broker (MBS), a change is made to the following registry key:

HKEY_LOCAL_MACHINE\System\CCS\Services\W3SVC\Parameters\Filter DLLs

Prxyfltr.dll is added to the list. However, a comma is used for a delimiter, which causes the STOP error to be reported in the Event Log.


Nothing needs to be done to fix this issue. If you want to, you can change the delimiter from a comma to a semicolon, so that the error message no longer appears.

Keywords: kbprb KB172021