The ASIO driver is supported for Windows XP environments only. (The Mac OS X CoreAudio driver provides excellent low-latency performance so no ASIO support is needed for the Mac OS X environment.)
The USB-AUDIO Driver can be downloaded and installed from the following link: MW12CX/MW12C/MW10C/MW8CX ASIO DirectKS Driver
ASIO 2.0 functions (direct monitoring control, etc.) are not supported.