After installing the public beta I recieve an error whenever I attempt to 'Build' in WED.

Can't execute
'C:/Program Files (x86)\GStudio7\wwmp2wmb.exe'

Attempted to set 'Run as Administrator' but still no luck.

Any suggestions?

A7 Com, Win7 (64), Quad Core, 8gigs ram


Edit:
Completely removed GS for fresh install, still same issue.