Since yesterday, everytime I run a program vb.net freeses.

It gets to the point where it says:
Build: 1 Succeeded, 0 failed, 0 skipped.
my program is shown in the processes window in the task manager, but not the applications window(I should be in the applications windows because it isn't hidden).

I'm running windows 2000 pro sp3.
This started happening yesterday after I was unstalling some updates.