Is there a way to snapshot a running process to disk to restore it later?

I usually work with a lot of instances of visual studio open to different projects, I was wondering if there is a way to snapshot/hibernate a running process to disk instead of closing it so that I can open it in the same state as it was quickly.

I have a ton of free disk space so wouldn't mind saving the entire process snapshot if it would save me the time in opening up the solution and waiting for the projects to load.

Solution 1:

I do this using VirtualBox from Sun for separating projects. It's also handy because you can take snapshots.

The drawback is you need to put an entire OS on there.