sametime80w.exe is a j9w
belonging to IBM SDK, Java(tm) 2 Technology Edition
from International Business Machines Corporation
Non-system processes like sametime80w.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.