Msimerg.exe is a command line utility that uses MsiDatabaseMerge to merge a reference database into a base database.

This tool is only available in the Windows SDK Components for Windows Installer Developers.


Msimerg {base database}{reference database}

If there is a merge conflict between the two databases, the conflict information is placed in the _MergeErrors table.

Command Line Options


Windows Installer Development Tools

Released Versions, Tools, and Redistributables