Versions:

2.12.9
2.12.8
2.12.7
2.12.6
2.12.5
2.12.4
2.12.3
2.12.0
2.11.10
2.11.9
2.11.8
2.11.7
2.11.6
2.11.5
2.11.3
2.11.2
2.11.1
2.11.0
2.10.8
2.10.7
2.10.6
2.10.5
2.10.4
2.10.3
2.10.2
2.10.1
2.10.0
2.9.0
2.8.1
2.8.0
2.7.3
2.7.2
2.7.1
2.7.0

lessmsi is a lightweight Windows utility developed by Scott Willeke that exposes the internal structure of Microsoft Installer packages, enabling users to inspect and selectively extract files from .msi archives without running the full installation routine. Designed for system administrators, packagers, and forensic analysts, the program combines a straightforward graphical browser with a fully scriptable command-line mode, permitting both interactive exploration and unattended batch extraction of embedded binaries, cabinet streams, registry entries, and summary information. Typical use cases include harvesting individual libraries from vendor installers for repackaging, verifying digital signatures contained within an MSI, comparing file versions across successive product releases, retrieving lost resources from obsolete installers, or auditing deployment scripts prior to enterprise roll-out. Since its initial release the tool has matured through thirty-four incremental builds; the current stable version 2.12.9 continues to refine compatibility with modern Windows Installer formats while preserving backward support for legacy packages. The application is categorized under Developer Tools – Installer/Uninstaller and integrates with the Explorer context menu so that right-clicking any .msi file offers instant access to its contents. lessmsi is available for free on get.nero.com, where downloads are provided via trusted Windows package sources such as winget, always delivering the latest version and supporting batch installation of multiple applications.

Tags:

c-sharp 9

chocolatey 6

extract 24

extract-files 1

install 15

install-script 2

msi 12

windows 235