Is it possible to run an .au3 script silently?

I created an AutoIt script using the Au3 Recorder to run an OpenSSH Uninstall/Install - it uninstalls an older version of Open SSH and installs the most recent using an .exe.  I recorded all the steps I would need to run all of that and the .au3 works great, but the problem is that I need it to run as part of a batch script update to about 300 offsite locations while they are off their PCs overnight.  We are doing several others things in this batch script and in testing, it always hangs when it gets to the C:\AutotIt3.exe OpenSSHInstall.Au3 command, which makes me think it needs to be run silently.  Yet that command runs fine when run by hand at the command line and watching AutoIt whiz through it's thing to completion.  I've tried C:\AutotIt3.exe /S OpenSSHInstall.Au3 and C:\AutotIt3.exe /q OpenSSHInstall.Au3 but both give me errors.  Any ideas?

Thank you,
From a self-proclaimed noob