I followed similar instructions to http://simswiki.info/wiki.php?title=Game_Help:TS3_Uninstall, but not http://answers.ea.com/t5/The-Sims-3/Help-Guide-All-in-one-fix-except-hardware-issues-PC-only/m-p/734..., but i just redid it your way and still no luck.
Im not sure how to patch it in my condition, instructions to patch tell me to open the launcher and go to updates tab to patch it, but the launcher crashes when i try to open it...
Try downloading the patch manually here:
http://answers.ea.com/t5/The-Sims-3/FAQ-Patch-1-67/td-p/67858/
Ok. i patched the game using the super patch, but it still gives me "sims3Launcher has stopped working" when i try to play
When did you by the base game ? Before or after september 2012 ?
I would try bypassing the launcher again. You need to click on ts3w.exe and not on ts3.exe.
Origin is telling me I bought it august 30 2012. I tried using ts3w.exe but it tells me that d3dx9_31.dll is not designed for windows or it contains an error. I tried using the direct-x web installer to fix it before but it doesent fix it.
