I have deinstalled origin and the sims 3 via revo again, clean installed both and done your latest suggestions. But it didn't help, sadly.
When it comes to your question of how I did it with the disc;
I have installed the game with the disc, like two times. First it launched without a patch whatsoever, in-game it said I could update the game through the EA Download Manager so that was what I did. I closed the game and updated it.(it got updated to 1.67). And later when I have installed Origin to download all the rest of the addons, it launched once, funnily... it didn't even wanted to update the game o.O. But after closing the game it forced the game to get "repaired", so it could get updated to the newest version, but it got broke and stopped launching with that same error code. So I have deinstalled both again(Origin & Sims3)
Later I have installed it again with the disc, and the game didn't launch, not even react with any error. But it did launch after the patcher. I wanted to try it again with Origin, but it did something similar to before, but instead of launching it once, it wanted to "repair" it right away.
@Avareee It does sound like the issue is Origin itself, or rather some resource Origin wants to use that isn't working on your computer. The only things that change between patches 1.67 and 1.69 are the Origin tie-in, the pack selector (the Expansions & Stuff tab) in the launcher, and the .exe that Sims 3 uses. The pack selector shouldn't have anything to do with this, and TS3.exe itself supposedly works in almost the exact same way as TS3W.exe, which runs the non-1.69 versions of the game.
One thing I thought of that I've never tried is renaming TS3.exe to Sims3Launcher.exe or S3Launcher.exe; I don't remember off the top of my head which one Origin calls to open the launcher. Point is, inside ...\The Sims 3\Game\Bin, you'll see a bunch of .exe files, one of which Origin uses when launching the game. (The ones with a W in them are only used in patch 1.67 and earlier.) So if you rename TS3.exe, which opens the game itself, to the name of the .exe that's supposed to open the launcher, and the process of calling the launcher is the problem here, maybe you can bypass it.
Be sure to rename each launcher .exe (you can put an -old on the end) before renaming TS3.exe, so you don't have two files with the same name in the same folder. If this doesn't work, repairing will restore the files.
