Since installing VS 2012 two different windows projects have been corrupted by VS 2012.

One, which reads Active Directory, has repeatedly overwritten the codebehind for a form with binary zeros. I wasn't even able to "Get Latest" from TFS to overwrite it and ended up having to cut and paste code from Source Explorer to fix it. This has happened so many times now I'm creating a backup every time I touch it just in case.

The second, which navigates to and parses web sites for links and email addresses, is suddenly unable to display a user control to which I've made no changes in at least a week. The references still appear to exist in the codebehind and it's compiling OK, but the user control isn't being displayed and it's now throwing runtime errors. Furthermore, the user control is not listed on the components drop down in the Properties pane and it no longer appears in the Toolbox nor do I seem able to add it. adding to my frustration, VS just crashed after clicking the browse button on the Choose Items dialog box. *&^%$#@!

Am I just unusually unlucky or have others experienced similar problems with VS 2012? Can anybody suggest a solution other than burning the witch?

For those experiencing similar problems, the form definition code was just corrupted yet again. It occurred immediately after renaming a SplitContainer. The SplitContainer I tried to change was renamed, but all controls in it were inexplicably moved to a newly created SplitContainer called SplitContainer1 which was not visible on the Form. This explains why the code compiled and ran but nothing was visible.

I've had to manually move all the controls back and delete the code creating the new SplitContainer that the IDE generated. What a PITA!

I recommend avoiding SplitContainer!

However, be aware of the overhead this solution brings. Each user now needs a user account and possible a license in SQL Server as well. I would prefer the multi-tenant solution.