How to detect whether or not Visual Studio 2008 SP1 is installed on a systemhttp://blogs.msdn.com/astebner/archive/2009/04/09/9541845.aspxQuestion: I am trying to install an application that requires Visual Studio 2008 SP1 before it can successfully install. How can I detect the presence of Visual Studio 2008 SP1? Answer: There is not an officially documented way of detecting VS 2008 SP1.en-USCommunityServer 2.1 SP1 (Build: 61025.2)Detecting Visual Studio 2008 Service Pack 1http://blogs.msdn.com/astebner/archive/2009/04/09/9541845.aspx#9652579Fri, 29 May 2009 13:40:42 GMT91d46819-8472-40ad-a661-2c78acb4018c:9652579Heath Stewart's Blog<p>The Visual Studio 2008 RTM and SP1 detection keys are largely the same as the Visual Studio 2005 SP1</p>