Firstly, this is a fantastic tool. I've used it over and over again. I've been on a 32 bit machine till now and it's worked wonderfully.
Now, however, i've moved to 64 bit, and i'm in trouble.. i need to recompile. While i try to go through the process, I wanted to throw this request out there: Would anyone be willing to share the 64 bit version of this mex file? That would be incredibly useful to me (and I would guess others as well).