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Microsoft KB Archive/173532

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Knowledge Base

RADIUS authentication causes access violation in Mprouter.exe

Article ID: 173532

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Routing and Remote Access Service Update for Windows NT Server 4.0

This article was previously published under Q173532


When a Remote Access Service (RAS) client connects to your Windows NT 4.0 RAS Server that is running the Routing and Remote Access Service (RRAS) Update configured to use Remote Authentication Dial-In User Service (RADIUS) authentication, you may receive an access violation in Mprouter.exe.


Obtain the Routing & Remote Access Service Hotfix Update mentioned below.


Microsoft has confirmed this to be a problem in Routing and Remote Access Update for Windows NT Server version 4.0. This problem was corrected in the Routing & Remote Access Service Hotfix Update. You can obtain this update from Microsoft's World Wide Web Site on the Internet at the following location:

NOTE: Because the Microsoft Web site is regularly updated, the site address may change without notice. If this occurs, link to the Microsoft home page at the following address:

Keywords: kbbug kberrmsg kbfix kbnetwork KB173532