Oooh Awesome!!
If you've got the original 2009 discs you should be able to install and play the game without Origin/EA App.
-- If you use Origin/EA App for any other games, turn off game updates so the app doesn't try to take over the install. Click Menu (☰) up top left > Settings > Downloads > Updates - Update Games Automatically = Turned off
If previously installed (game or App) You may need to uninstall, run a registry cleaner such as Ccleaner or Revo Uninstaller to cleanup the files left behind from uninstalling or reinstalling the game files, etc.
Optionally you might want to disable or turn off the internet while you try to install the discs, so the install goes a little more smoothly. Keep say No to Origin or EA app wanting to install the EA Manager.
Start by installing the base game and then either use the Superpatch provided by EA - Using the link from Nraas, as it's got some good info on the patch. (
https://www.nraas.net/community/Super-Patch)
Alternatively you can download the Sims 3 Patch Downloader from ModtheSims. (
https://modthesims.info/d/409829)
It's my understanding after you've got the base game patched to 1.67 you can then install the discs in any order. Just keep saying no to Origin/EA App wanting to install the EA Manager while installing.
I have the original 2009 disc version and was able to install it without Origin or EA App. I just kept telling Origin No I don't want to download the EA Manager. However, I did this with game updates turned off in the EA App.
You want to say no to the EA Manager so that Origin/EA App doesn't take over your install and cause more issues. Like not being able to download or play from your own EA Account. Sadly that has happened to so many fellow Simmers!! EA App doesn't allow players to play offline unless you login to the EA App and select go offline first. So if your internet goes out, you can't play games.
To play without the discs. Unzip the NoCD mod and add it to your mods\package folder.
Nraas NoCD
https://www.nraas.net/community/NoCDAnd launch your game with the game's exe file = TS3W.exe
C:\Program files (x86)\Electronic Arts\The sims 3\Game\Bin\TS3W.exe