S3Mon for S3DuoVue is a software product for Windows developed by S3 Graphics, Inc.
It is reported that the following Windows processes are part of S3Mon for S3DuoVue:
If you want to remove S3Mon for S3DuoVue from your computer, just go to Start > Control Panel > Add/Remove programs and select S3Mon for S3DuoVue from the list of programs.