nbj-esp.nls is a Nero BackItUp Scheduler
belonging to Nero BackItUp Scheduler
from Ahead Software AG
Non-system processes like nbj-esp.nls 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.