DUPLICATE INSPECTOR 1.3.0 FOR WINDOWS
TEST AND VERIFICATION SUMMARY

RELEASE IDENTITY

- Installer size: 22,555,397 bytes (21.51 MiB).
- Installer SHA-256:
  62D3AD394B0C2F26CD791F3A14E3072490EEA6998BCC3E26E0F0201FE3BAB738
- Installed version: 1.3.0.
- Installer and installed executable Authenticode status: Not signed.

AUTOMATED CHECKS RECORDED BY THE RELEASE

- Eight automated tests passed.
- JavaScript syntax checks passed.
- HTML parsing checks passed.
- Test coverage included duplicate detection, cancellation, folder browsing,
  security headers, cleanup safeguards, and video-thumbnail caching.
- Final archive inspection found zero FFmpeg/imageio-ffmpeg entries.
- All 29 package checksums matched.

MANUAL CHECKS RECORDED BY THE RELEASE

- Installer installation.
- Start Menu and desktop shortcuts.
- Uninstaller.
- Native folder browser.
- Installed desktop interface.
- Installed native desktop launch.
- Video preview through Windows Shell thumbnail providers.
- Migration from the legacy version 1.2.0 installation.

ANTIVIRUS RECORD

A Microsoft Defender custom scan of this exact installer reported no threats
on 1 August 2026 using security intelligence version 1.455.454.0.

LIMITS OF THIS REPORT

A historical test summary and scan do not prove that every duplicate will be
found, that every selected file is unnecessary, that data loss is impossible,
or that the software is malware-free or completely secure. No independent
penetration test or security certification is reported. The installer remains
unsigned. The no-FFmpeg finding is a technical inspection of this exact final
artifact, not legal advice or a general licence-compliance certification.