How to Install an NSIS Executable Silently For All Users

4
votes

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

enter image description here

2
command-linewindows-installerinstallationnsissilent-installer

2 Answers

3
votes

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...

1
votes

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.