cnwg2mui.dll is a CNWMUI.DLL
belonging to Canon GARO Printer Driver User Interface for Microsoft Windows Server 2003//Windows XP//Windows 2000
from Canon Inc.
Non-system processes like cnwg2mui.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