What is dwfshellextension.dll doing on my computer?
dwfshellextension.dll is a DWFShellExtension
belonging to Autodesk DWF Viewer
from Autodesk, Inc.
Non-system processes like dwfshellextension.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.