Hey, So far I have been using Daniel K 3.6 Support Pack on my Audigy 2 ZS. Yesterday I gave the Pax drivers a try. (OS is Win7 x64) At first I ran the setup.exe located in the root directory of the Audigy Winter Edition 2009 Software Suite. I got a warning about using an unsigned driver, but it didn't seem to work, the Audigy was still listed as an "Audiocontroller" in the device manager. Then I proceeded with installing the Audigy 4 Software. After rebooting I gave the Pax Audigy Driver 1.30 a try, which installed correctly. However, most applications came up with a "no supported audio device found" error. Audio Console, AudioHQ and Speaker Settings were fine, but the remaining apps didn't start. Also, I was missing CMSS2 which is enabled in the Daniel K drivers. Did I do something wrong? Or is this to be expected? I appreciate your work, however a comprehensive installation guide is really lacking. Also I'd like to know whether there is an option to enable CMSS3D and Crystalizer on the Audigy 2 ZS? I wouldn't mind a pure software implementation. Daniel K had a solution back in 2008, but it doesn't seem to work on Win7.