http://www.asus.cz/product.aspx?P_ID...K2f&templete=2
drivers pro W7 32 bit
Version 7.12.8.1777 DescriptionXonar Essence STX driver for Windows 7 32/64bit Version: 7.12.8.1777
1. Fix bug: When enable AEC, The message still appears next time even you select "do not inform me next time"
2. Fix bug: There will show "Vista" wording in warning message in control UI under WIN7 OS.
3. Fix bug: The installing process bar doesn't run as its actual progress.

Note: Window 7 does not automatically select Xonar as default audio device after driver installation.
Please go to Control Panel ---> Handware and Sound and apply the settings below:
Playback ---> Speaker: select “ASUS Xonar Audio Device”
Record ing ---> Microphone: select “ASUS Xonar Audio Device” File Size 10.45 (MBytes)2010/01/08 update