Sorry for getting to you so late. I think your original post was before I turned on notifications which is why I missed it.
I think the build may have been missing files at the time, specifically missing a dll or two. I recently updated the game so everything should be there.
However after a quick google search I also found this, which is worth a try if you are having issues with the latest build:
"
You get this error when 64 bit application is trying to run 32 bit .dll;
To resolve replace mfc100.dll, mfc100u.dll, msvcr100.dll, msvcp100.dll files at your C:\Windows\System32 folder with 64 bit versions.
They can be found here - http://www.bitdefender.com/files/KnowledgeBase/file/dlls_x64.zip
"