Will MicroCode Studio run these interrupt routines "out of the box",
It should. It's been awhile since I installed MCS, but I remember it being pretty easy. Just select "use MPASM" in the View|Compile and Program options|Assembler dialog. Of course MPASM has to be installed already.

And for the program, the post says it's for a 16F88, but the ASM file shows it was compiled for a 16F84. Could be part of the problem.
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