AC97, C-magor, D-major Audio – STSYSTRA.EXE

Stsystra.exe is the system tray icon that installs with the SigmaTel AC97 Audio drivers and the C-Major or D-Major Audio drivers. Files called stacmon.exe and shellexwin.exe -M may also appear on your system. The system tray icon is not required. If you don't use it, you can safely remove it. You can still access your sound configuration via the Control Panel. We'd recommend leaving the other files in place.

You'll find more info on the Audio codecs at http://www.sigmatel.com/products/tech-support.htm. You'll probably want to go through your system or sound card retailer for the latest drivers.

Safe

SigmaTel, Inc.