StackOverflow2013

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POInclude NetFx20SP2_x86 as prerequisite for .Net setup project so that it installs correctly on Vista and Windows 7
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copied!<p>We are supporting a VB.Net application that gets distributed to various schools that use a wide variety of Windows versions, so the installer for the application needs to support Windows XP, Vista and Windows 7. We have recently encountered a problem with our application on Windows XP which is solved by installing NetFx20SP2_x86.exe which we downloaded from here: <a href="http://www.microsoft.com/download/en/details.aspx?id=1639" rel="nofollow">http://www.microsoft.com/download/en/details.aspx?id=1639</a>. I also downloaded .NET Frameworks 2.0 SP2 and 3.0 SP2 bootstrapper packages from here <a href="http://go.microsoft.com/fwlink/?LinkID=127832" rel="nofollow">http://go.microsoft.com/fwlink/?LinkID=127832</a>. This install adds Framework 2 SP 2 as an option in the prerequisites list of the .Net setup project. </p> <p>I then created a setup project that has Framework 2 and Framework 2 SP2 selected as prerequisites. This produces a setup file that works fine in XP, but the problem is that when the same setup file is run on Windows Vista or Windows 7, the following error message occurs when trying to install NetFx20SP2: "This action is only valid for products that are currently installed".</p> <p>How can I produce one setup file that will ensure that Famework 2 and SP2 for framework 2 are correctly installed on all three Windows platforms that we support?</p>

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