This is the driver for the Trust HS-6400 USB Headset. You will note that this driver will only run in Windows XP and Vista. This was the latest driver for the headset. If you cannot run it on Windows 7 then try running the driver in compatibility mode as explain on this website.
This is the driver and like any file on the internet always scan the files you download before you install them on your computer. Surround USB Headset is below in 4 file formats.