Because someone may come across this at some point. Some background: if you use class-compliant USB MIDI devices, windows XP does not use the name the hardware provides, but simply calls it "USB Audio Device". This is annoying, but not a huge deal.
However, this generic name depends on language. If you use French as your language in XP, for example, the port will have the name "Périphérique audio USB"
For whatever reason, XP is unable to report this correctly in some instances. If you use 'midiinfo' to make a menu, you'll see:
"P riph rique audio USB"
It's not just Max: for example, the Jazz-Soft browser plugin (for midi in/out for your browser) also reports the port this way.
HOWEVER!! It is possible to change that generic name. This is the solution to possible problems this may cause:
lines 1521 & 1522 (maybe only one is enough but I don't test it)
USBCLASS_01.DeviceDesc="Périphérique audio USB"
USBGenericDesc="Périphérique audio USB"
USBCLASS_01.DeviceDesc="Paripharique audio USB"
USBGenericDesc="Paripharique audio USB"