update_abocfg.dll is a up_abocfg
belonging to T-Online Basissoftware
from Deutsche Telekom AG
Non-system processes like update_abocfg.dll 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.