I still can't get Arc working on my windows machine. I got MzScheme 372 installed and it appears to work fine. I downloaded and untared it. I added MzScheme to the path, and put in the standard: mzscheme -m -f as.scm. I got the following error message and I appear to be opening into MzScheme (w/ no Arc). Here's the error message:
"compile: bad syntax; function application is not allowed, because no #%app syntax transformer is bound in: (quote nil)