Under Win7 Pro 64 bit, the card works very well and provides a good sound for the price. After a little time-consuming installation including through Driver Update and update the attached applications, the thing worked to my satisfaction (every now and then plunged the Controll center from). But unfortunately the thing goes on Win XP Home 32-bit SP3 not as round. There are significant problems with drivers blue screen. I wanted to run the card on my netbook under this system that was not working with special effects. But fortunately there are an uninstaller for all drivers salad! Attention there are several uninstalls required. Unfortunately I have to make compromises in the evaluation because of poor software, but otherwise you can see the map if you surround 5.1 sound needs, recommend. With headphones the default map of my netbook also works fairly well, almost better!