If a previous product version is already installed, the existing product components can be upgraded by omitting the command-line arguments. For example:
msiexec /i /quiet "C:\Temp\BlueCielo Meridian Enterprise.msi"
Related concepts
Controlling Windows Installer packages
Related tasks
About the command-line switches
Installing or removing optional components
Installing second language support
Installing the server components silently
Upgrading Meridian client computers automatically
Preparing the Meridian server computer
Installing hotfixes automatically
Preparing the Meridian client computers
Upgrading external tables to SQL Server Compact Edition
Related information