NOTE: The 1.2 update is FORCED, even if you have update disabled in Steam.
I disabled my network interface, copied the entire 1.1 game. Went into steam and disabled updates. After activating network and running steam, patch is automatic despite checkbox saying updates are turned off.
I wonder if it will auto-patch every time I overwrite with 1.1? Its not clear how I can get it to not do this.
So this is how I got it to continue using 1.1
I copied the entire "skyrim" game folder. (as well as steamapp config files and MyGames/skyrim). When I launched steam for the first time, then clicked "play", even with update disabled, it loaded 1.2. I killed Haydens fix, then clicked play (again). It was now running 1.2 with badly scaled menus as expected. Immediately exited from Skyrim.
Copied the 1.1 skyrim folder back to /common. Started haydens 0.3 fix. Launched from the launcher. Play, continue. Everything is working w/ 1.1
Reboot. Verified again. When started from launcher, does not try to repatch. It may be one of the config files in /common, or perhaps it is maintained on the server, but once it has patched, it did not try to patch again. I can play 1.1.
I feel like I am playing on borrowed time. Perhaps eveyone should keep running 1.1 and give Haydn a rest until they break it again, so that he does not chase his tail too much. Thanks again Hayden for your fix.