Hello,
My Visual Studio solution file has lots of build configurations that significantly differ in which projects are enabled, and which are not. I'd like to automatically unload all projects that are turned off in active build configuration to save RAM and make VS faster. Is this possible?
Not without writing something yourself.
The data which indicates which projects are unloaded is kept in the .suo file that goes with the solution file, so one cheap hack way you could do it (before you write that cool VS extension) is to keep a different solution file for each major build configuration.