If I use the /a command line parameter on the MapInfoProXX.X.XMaintenanceRelease.exe I can extract the MSI to use for unattended installs. But do the EXE include something else that I will be missing if I do this? With the main MapInfo installation, this is not possible as the EXE file installs prerequisites. I have a client, where running the EXE silent, gives an error 1203. I want to try with the MSI instead because I can apply logging when installing this.