MSIModule creates models.Packages instance from the windows registry
Details
For system-wide apps, it looks at HKLM/SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall/* and HKLM/WOW6432Node/SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall/* for 32bits apps. For user-specific apps: HKCU/SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall/*.