I have an NSIS installer executable which I would like to install silently for all users. I know I can pass the /S argument to do a silent install. The problem is that the default option for the installer is to install only for the current user. How can I change this option from the command line:
installer.exe /S
It turns out that for this particular installer you can pass:
/ALLUSERS=1
ALLUSERS is a standard MSI property. I did not find any documentation for this property in NSIS, so it looks like the developers of this particular installer added this.
NSIS itself just supports /S, /NCRC and /D=c:\override\default\installdir\, everything else is up the author.
If the custom page from your screenshot was created with MultiUser.nsh and the author defined MULTIUSER_INSTALLMODE_COMMANDLINE then you could use installer.exe /AllUsers /S, otherwise you have to ask the author of the installer if they are checking for a specific command line switch.
If it turns out there is no way to do it then you would have to look into UI automation...
It turns out that for this particular installer you can pass:
/ALLUSERS=1
ALLUSERS is a standard MSI property. I did not find any documentation for this property in NSIS, so it looks like the developers of this particular installer added this.
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