How to stop Visual Studio from “always” checking out solution files?

November 18, 2022 by Tarik

This happens when the following is in the .sln file:

GlobalSection(ExtensibilityGlobals) = postSolution
    MyGlobalProperty = AnyValue
EndGlobalSection

I found that Enterprise Library added one of these. I removed it, checked in the solution, closed then re-opened it, and no more automatic check out.