Hi,
if you want to instal an U46MK2, you have to use the U46MK2 driver.
The driver you are trying to install is the MAYA 44 driver (its a different soundcard than the U46MK2)
Try to download the U46MK2 driver here :
[PC] [WIN XP,VISTA32bit] U46MK2 v1.041Step by step:
- unplug your soundcard and uninstall all the driver (MAYA44 or U46MK2)
- reboot your computer
- plug the U46MK2 in a USB port and turn it on
- install the U46MK2 driver
- always use the same USB port