This file is a harmful and undesirable program. Probably virus. It's recommended to delete it.
What is Csss.exe Windows startup process
File name: Csss.exe
Program name: csss
Description: BALICK TROJAN
Information added by: duendejr at 16 December 2008
Hint: If csss.exe file is a virus or trojan, we recommend to use a antivirus software or registry cleaner.