Microsoft KB Archive/906894

= Error message when you try to install the .NET Framework 2.0 on a computer that has the .NET Framework 2.0 Service Pack 1 installed: &quot;Setup cannot continue because this version of the .NET Framework is incompatible with a previously installed one&quot; =

Article ID: 906894

Article Last Modified on 12/3/2007

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APPLIES TO


 * Microsoft .NET Framework 2.0
 * WinFX

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SYMPTOMS
When you try to install the Microsoft .NET Framework 2.0 on a computer that has the .NET Framework 2.0 Service Pack 1 installed, you may receive an error message that resembles the following:

Setup cannot continue because this version of the .NET Framework is incompatible with a previously installed one. For more information, see http://support.microsoft.com/kb/906894.



CAUSE
The .NET Framework 2.0 Service Pack 1 is a later version of the .NET Framework 2.0. The earlier version cannot be installed over the later version.



RESOLUTION
To resolve this problem, uninstall the .NET Framework 2.0 Service Pack 1 before you install the .NET Framework 2.0.



Steps to reproduce the problem

 * 1) On a computer that is running Microsoft Windows Server 2003 Service Pack 1 or Windows XP Service Pack 2, install the .NET Framework 2.0 Service Pack 1 or the .NET Framework 3.5.
 * 2) Install the .NET Framework 2.0.

You receive the error message that is mentioned in the &quot;Symptoms&quot; section.

Keywords: kbtshoot kbprb kbvideotech kbuninstall KB906894

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