Compare software

FileActivityWatch vs ProcessActivityView: catalog facts
FileActivityWatch	ProcessActivityView
Free Freeware from NirSoft with no paid tier.	Free Freeware from NirSoft, free to use and redistribute unmodified.
Windows	Windows
Links each file operation to the process that made it Folder and drive summary modes	Per-file counts of opens, reads, writes and bytes Shows which DLL opened each file
Requires running as Administrator Windows only	The published requirements list versions through Windows 8 Injects a DLL into the inspected process
Downloadable app	Downloadable app
Closed source	Closed source
License: Freeware	License: Freeware
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.