I have rebuilded the X64 driver for IgorUSB device,you can use it on Windows XP X64 or Vista X64 Edition
Vista X64 Note:
First,you must use administrator cmd to disable driver digital sign
bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS
and restart computer then intall the driver
use ezmcplug.dll replace igorplug.dll in girder\plugins folder
and just ok!