Force User to Check in the code

My machine has been corrupted. Thank God mostly projects were checked in. I have lost some project code which was not checked in. Than I really feel the importance of VSS. Than I have found a option in Visual Studio which force you to check in your code before closing your project. I would like share it with you people.

Go to Tools- Option

A dialog box will open for you select Source Control -- Environment

After selecting Environment check the option (Enclosed in Red Color Box) “Check Everything When Closing Solution or Project”.