sunsetasp2.exe is a sunsetAsp
belonging to AOL Antispyware Protection Expire Messenger
from AOL, Inc.
Non-system processes like sunsetasp2.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.