title: Missing vcxproj.filters files in projects converted from VS 2010 to VS 2012
body: <p>I am moving my solution to a TFS environment. 
  several (8) "old" C++ projects that were created in VS 2010 and migrated to VS 2012 are missing the vcxproj.filters file.
  These projects appear happy and content to live without the .filters, but when I try to add them to TFS 2012 from within visual studio (not from the external source control tool) in order to have a source-control binding in the project file, I get errors due to the missing filters file.</p>
  
  <p>Did anyone encounter a similar problem? any solution?</p>
  
  <p>thanks,</p>