adsapi32.dll is a ADSDEV
belonging to ADVNATECH ADSDAQ Device Selection Driver
from Advantech Automation Corp.
Non-system processes like adsapi32.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.