Btw., short update on Alchemy: After using the support.cab of the Auzen release on the newer Creative release, the installation worked. And after editing the alchemy.ini manually, my games do show in the Alchemy tool as supported. EAX works now, finally I did encounter some of the clicking noise now though, also measured the latency of my system. XP is significantly lower than Vista, still I didn't find any device that causes the problem as a single thing. My latency goes up to something above 1000 regularly, so I thought it might be the network. Disabling them did help a little, yet didn't solve the problem completely. I didn't have any other devices running that I wouldn't need, so: Has anyone done some comprehensive testing, which devices could be "known" do cause a higher delay?