Microsoft KB Archive/87136

= RAS Install Failure After LAN Manager 2.1 Upgrade =

Article ID: 87136

Article Last Modified on 9/30/2003

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APPLIES TO


 * Microsoft LAN Manager 2.1 Standard Edition
 * Microsoft LAN Manager 2.1a

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This article was previously published under Q87136



SYMPTOMS
When attempting to install RAS after upgrading to LAN Manager 2.1, an error appears indicating that you must have LAN Manager version 2.1 in order to install the RAS service.



CAUSE
The code used to verify the version of LAN Manager that is installed uses the following logic: IF LANMAN.CSD exists IF &quot;version&quot; is 2.1+ THEN its LM2.1+ ELSE IF &quot;version&quot; is 2.0.8+ THEN it is LM2.0c+

ELSE IF [Version] section exists in LANMAN.INI THEN it is LM 2.1+ This means that if the LANMAN.CSD file is not deleted when a user upgrades to LAN Manager 2.1, the installation will fail.



WORKAROUND
The immediate workaround for customers is to delete the LANMAN.CSD file.



STATUS
Microsoft has confirmed this to be a problem in LAN Manager version 2.1. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: 2.10 prodlm

Keywords: KB87136

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