So I installed the new april release of the VS2010 express for windows phone 7 and now VS2008 express C# no longer opens .csproj files. I'm at a loss as to why this is as I've not changed anything in the files themselves. I'm currently uninstalling windows phone 7 in the hopes that I will be able to open my files again. I have a feeling though I'm going to need to uninstall 2008 as well and the reinstall it to get everything to work.
In the future how should I install 2010 express for win 7 phone to prevent it from interfering with 2008 express?