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I'm currently trying to install .NET 3.5 SP1 on a Windows 2003 SP1 Server and it gives me an error saying that this needs to be done with the "role-management tool".

Where do I find that tool and how to use it?!

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up vote 0 down vote accepted

Hm the role management tool only exists on Windows Server 2008. It's the replacement of Add / Remove Windows Components of the Windows Server 2003.

Is it possible that you need at least SP2 on your windows server 2003? Or try to install the newest .Net Framework 2.0 Release prior to install the 3.5 release.

Maybe you will find some usefull information in the 3.5 Readme:


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Well, okay I tried 2.0 before and now it gives an error about fusioning that's not working... – Florian Peschka Nov 18 '09 at 9:50
hi can you post the whole error message? does the application or system eventlog log anything – grub Nov 18 '09 at 10:24

Description: Stopped working

Problem signature: Problem Event Name: CLR20r3 Problem Signature 01: mmc.exe Problem Signature 02: 6.0.6001.18000 Problem Signature 03: 47918d09 Problem Signature 04: Microsoft.Windows.ServerManager Problem Signature 05: Problem Signature 06: 4791a748 Problem Signature 07: 1909 Problem Signature 08: d Problem Signature 09: System.BadImageFormatException OS Version: 6.0.6001. Locale ID: 2057

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