Visual Patch 

Provides software developers with a comprehensive solution for creating secure full-history software update patches. Visually indicates the differences among product releases and automatically builds only those changes into a single-file patch.
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Monitapp - Computer Inventory 

MonitApp is an asset management tool which use WMI to retrieve information about hardware and software configuration from remote computers and store it onto an Excel file. It also detects changes and registers into same Excel File as history sheet
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