I make sure everything is working on my computer for a day or two before copying my ArchiCAD application folder to the server. Then I simply drag copies from here to each user's application folder. One at time like Eric. Fast network, all Macs, it's done before I walk away.
AC24 INT, Mac (home), Win10 (work)
Yes, you read that correctly, we are in the US but use the INT version.
Even better, Geoff. I'm pretty sure on Windows you have to have run the native installer at least once on each client computer for the version you're installing because of the registry settings it creates (stupid registry!). After that the copying of the app folder should work, too. At least for updates.
You have to install the application - yes - but as for the update - no installing is needed - copying the Archicad folder will in most cases work.
(Anyway - the registry settings can be saved and restored on the other computers - just export all of the "Graphisoft" subbranches in HKCU and HKLM branches and than run the *reg's on the other computers)
Additionally the Users data can be copied from "Documents&Settings" such as WE translators etc
Thanks to GS that AC does almost everything inside its own folder (unlike most of Win applications)
In the ancient times it was even better - AC run without installing it (I just copied the Archicad folder and installed the key software)