title: Opening WebMatrix solutions in VS failing when 2 versions of VS installed
body: <p>Microsoft's <a href="http://www.microsoft.com/web/webmatrix/" rel="nofollow">WebMatrix</a> development tool has a "Visual Studio" button to launch the VS editor and load it with the site you have open in WebMatrix.</p>
  
  <p>Normally it loads VS 2010, since that's the only version that supports WebMatrix sites.  But the other day at home it started trying to load VS 2008, and I got the error message:</p>
  
  <blockquote>
    <p>The selected file is a solution file,
    but was created by a newer version of
    this application and cannot be opened.</p>
  </blockquote>
  
  <p>This also started happening at work today.  At both work and home I have VS 2010 and VS 2008 installed side-by-side.  Does anybody know what the problem is and how to fix it?</p>
  
  <p>At home I tried uninstalling VS 2008 and restarting the machine, but WebMatrix still couldn't see VS 2010 and prompted me to download some other free tool.</p>
  
  <p>Microsoft recently sent out a bunch of updates, and as always, I applied the important ones.  I wonder if that caused it.</p>