Hey guys, I was searching a fix for mm7 and by reading on this page i figured how to fix this shit since the compatibility mode (last reply) didn't work for me.
1. Download "Microsoft Application Compatibility Toolkit 3.0" from microsoft. Easy way, just copy/paste the quote in their search engine and download.
2. Then, download this patch
http://minnow1911.tripod.com/mm7_XP_patch.sdb
in order to bypass the system version check.
3. Execute the file and you should have a message like "Installation of MM7_XP_Patch complete". If not, return to #1.
4. Last thing, dunno if it's for everyone, but you have to disable "Hardware accelerated" by running MM7Setup.exe.
Sound is a bit chippy for me but working great.
minnow