[maxmsp] Re: exporting midi messages from max to another program

Its been a while since I've used Max on windows, but back in the day I used midi yoke. It is a set of drivers that allows inter-application midi routing, much like the IAC bus on OSX. The installation notes dont seem to mention windows XP but I definitely used it on that OS. 

http://www.midiox.com/myoke.htm

Its an old set of drivers, and there might be a better equivalent out there now, but hopefully it should point you in the right direction.