Works flawlessly on Windows 7. Headphones and microphone to the USB sockets sound card, sound card memory stick into the USB interface. Drivers are automatically installed and after 10 seconds comes' device can now be used. Win7 recognizes when the sound card is plugged in and switched on automatically. The Skype configuration is also adjusted automatically and the call is no more obstacles. USB Stick unplug and the original sound settings of the laptop are again as they were. Finally a product that works without complicated setting work right away. In short, affordable, funktionial and quickly, also free, shipping by CSL. Strong buy recommendation.