How to Relocate Visual Studio project (.sln) file

Question

I would like to move the Visual Studio solution (myProject.sln) file into a folder.

The problem with doing this is that all the relative paths in the project will break,

Answer 1

To complete jrummell solution: after editing the *.sln file with the nodepadd, you certainly will have to delete the *.suo files that contains a deprecated cache.

Note that *.suo files are hidden files in windows 7 (so by default, you do not see it in your explorer).