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I am trying to install Sql Server Mangement Studio 2008 onto a Window XP SP3 machine. When I do, it says that I need to install .Net Framework 3.5 SP1. However, I all ready have .Net Framework 4.0 installed.

How can I work around this?

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up vote 1 down vote accepted

Application targetting .NET 3.5 SP1 need .NET 3.5 SP1 installed. .NET 3.5 SP1 by default installs .NET 2 and .NET 3.0. Basically the base CLR version is .NET 2. .NET 4 is a new version of CLR. Hence applications targetting .NET 4 will need .NET 4 installed and applications targetting older versions will not switch to .NET 4 without recompile.

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Most versions of the .Net framework are not cumulative.
You need to install .Net 3.5 with SP1.

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