Please note that the Hosa USM-422 MIDI Cable is not our product. This is an
OEM version made exclusively for Hosa that is also serviced and supported 
exclusively by Hosa. You are welcome to use the information, documentation 
and Vista Drivers available on our Web Site on your own. 

The Vista Driver is available at this direct link:
ftp://ftp.turtlebeach.com/pub/tbs/usbmidi/usbvmidi.exe

The filename is:
USBVMIDI.EXE

Documentation and Vista Installation Instructions are available at this link:
http://support.turtlebeach.com/site/kb_ftp/582219804.asp

Best of luck,
Steve,
Turtle Beach Support Team