“The Application Cannot Start” in VS 2008 after install of VS 2010


I ran into a problem today where my Visual Studio 2008 install gave me the “The application cannot start” error after I had installed the RC of VS 2010.  After poking around, I found this post which helped me out a lot.

I had to copy these files from “C:\Program Files (x86)\Common Files\microsoft shared\MSEnv”:

  • dte80.olb
  • dte80a.olb
  • dte90.olb
  • dte90a.olb

and paste them into “C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE”

Then everything worked great.  No registration was needed.

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