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Free

Freeware from NirSoft; free to use and redistribute unmodified at no charge.

 Paid

Commercial software sold with a license; a download is offered on the site.

Windows Windows
  • Shows the files and Registry keys behind each MSI package
  • Can read an external drive's Windows installation
  • Monitors new installations for a clean removal
  • Analyzes already installed programs
  • Lists only software installed by Windows Installer (MSI)
  • Viewer only; it does not uninstall packages
  • Windows only
  • Paid license required
Downloadable app Downloadable app
Closed source Closed source
License: Freeware License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 8, 2026

Checked September 24, 2026

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