winssui.exe is a Windows Live OneCare
from Microsoft Corporation
belonging to Windows Live OneCare
. Windows Live OneCare, from Microsoft, is a suite designed to integrate anti-spyware, anti-virus, firewall and other security functions.
Non-system processes like winssui.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues