Silent installation of Connect add-in.
If you want the Add-in install wizard to run in background, you can install the Add-in Silently.
The command to install add-in silently is: Setup.exe /SP- this disables “This will install… Do you wish to continue?” prompt at the beginning of Setup. Of course, this will have no effect if the DisableStartupPrompt [Setup] section directive is set to yes.
Very silent would be: /SILENT, /VERYSILENT – this Instructs Setup to be silent or very silent. When Setup is silent,the wizard and the background window are not displayed but the installation progress window is. When a setup is very silent, this installation progress window is not displayed. Error messages during installation are displayed and the Startup prompt if you haven’t disabled it with DisableStartupPrompt or the ‘/SP-’ command line option explained above.