backplot.dll is a ToolpathViewer
belonging to ToolpathViewer Dynamic Link Library
from Northwood Designs, Inc.
Non-system processes like backplot.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.