My old installation still works with MO 1.3.11, the only problem is downloading and updating mods (again, not a big deal since I don't play it at the moment), but maybe I can somehow use MO2 for that and still run it through MO 1.3.11. It's not a big deal since I'm not playing Oblivion at the moment and also using MO with Oblivion is a real pain for numerous reasons, so I think I will be using Wrye Bash or maybe Vortex the next time I want to mod a new game. Providing the hook.dll from the old MO doesn't change anything, though. I noticed that MO 2 doesn't place the hook.dll in the obse/plugins folder, and it also doesn't exist in the MO 2 installation folder. When trying to launch the game, the Oblivion.exe process is started and maxes out one CPU core, but it only uses a few MB RAM, which never increases and the game never actually starts. Switching from MO 1.3.11 to MO 2.1.3 because of the Nexus login changes I find that the script extender workaround doesn't work for me with Oblivion.