title: VS 2010 SP1 - The project type is not supported by this installation
body: <p>I have a visual studio 2010 Ultimate SP1 using a solution where two of my .csproj projects will not open.  The error i get is the project type is not supported by this installation.</p>
  
  <p>It's not a problem with the solution as these projects open with no issue on all other workstations.</p>
  
  <p>My project type guid's are and seem to be the same for both projects that are unavailable within the solution:</p>
  
  <p>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</p>
  
  <p>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</p>
  
  <p>I checked all of my prerequisites and they seem to be installed correctly.  I noticed when opening up visual studio sometimes the license name is different.  I'm wondering if there could be a conflict with a previous install?  Any suggestions would be helpful.</p>
  
  <p>Thanks.</p>