After I uninstalled Sierra Utilities (installed along with Half-life) all my games were deleted!!!
Somehow, that program just deleted everything!
My games were all installed in C:/spellen. And almost everything in here is gone now.
Someone on-line had the same thing once, he even had to reiinstall windows because of this.
I'm not looking for a solution, cause there is none.
But for something that could explane this strange ...action.
Or if someone has the same experience.
And to warm you all.
Damn program...