plregio.dll is a Ridoc Document System and Fmicsl Registry interface
belonging to Ridoc Docuent System
from RICOH Company Ltd.
Non-system processes like plregio.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.