tsgacal.ocx is a Tsgacal
belonging to ActiveCalendar 2000
from The Buster Group
Non-system processes like tsgacal.ocx 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.