I'm looking for an official reference for the command line switches associated with `officec2rclient.exe`. It seems like there used to be a resource for this but it's no longer available. I found an archived version of that page, but unfortunately, my company has blocked access to the archive site due to security issues. Can anyone provide me with the command line switches or direct me to a reliable source? Thanks!
3 Answers
I get your frustration! Unfortunately, there isn’t an official full reference out right now for `officec2rclient.exe`. Based on what I’ve seen, it’s mainly useful for forcing updates, switching channels, and pinning versions. For certain tasks, it might help to use ODT XML for deterministic installs or configuration. Just a heads-up, anything outside what's documented might not work and could potentially break something. Good luck!
Are you aiming for a modern install of Office? If you're looking at newer versions (2019 and up), I have a script for installation, but I’m on my phone right now and can’t pull it up. What’s your specific need—installation or just updating?
Yes, I’m specifically asking about updating using `officec2rclient.exe`, not installing it. Just trying to see if I can force it to update when it's supposed to.
I totally get how annoying it is with access restrictions at work. If the archive site is off-limits, have you tried looking at any forums or tech blogs? Sometimes coworkers may have resources they can share. Just a thought.
I’ve checked a few places, but they’re all pretty sparse on concrete info. It's frustrating when you need specific details and can’t find them.

That’s true, I also found it tricky to get comprehensive info on this. I ended up using the tools provided in Microsoft 365 but it’s not always clear. Avoiding those undocumented commands is probably wise.