I think that was the error I was getting when I first started using Microcode Studio.

It was a while ago, but I think all I had to do was enable mpasm or something.

Its in:
View->Compile and Program options->Assembler Tab

Then check the use MPASM box and locate it on your computer.

If its the same error that might help. If not, I could be totally wrong and just messing with you more.