MDL Decompiler Error saying "vstdlib.dll was not found."

[Kurit]

I recently moved my Steam Folder to my D drive to make more space. Now that I moved it, MDL Decompiler doesn't work anymore. Some of the tutorials said I have to move a Source SDK File to a certain location. What is this file exactly, where can it be found and where do I put it, I already have Source SDK installed. Please help.

[dragonkilla]

[url]http://forumplanet.gamespy.com/modeling_skinning_animating/b67365/19641559/p1/[/url] Read all the posts one of them has to work.