title: msbuild slower than devenv
body: <p>I'm experiencing performance inconsistencies with regards to build duration when building a VS2008 solution file with either devenv or msbuild from command line.</p>
  
  <p>My solution contains both C# and C++ projects, and I have these results:</p>
  
  <p>devenv.exe (either command line or within the ide): 7 minutes
  msbuild.exe: 14 minutes</p>
  
  <p>I tried tuning the msbuild switches passing /maxcpucount and /p:VCBuildAdditionalOptions=m# but with no luck so far.</p>
  
  <p>Any idea?</p>