WARNING: please use this Steam guide with caution as I can't say if the LAA .exe used in this guide is legal or not. Past files I've discovered have been problematic, and while I've made an attempted effort to ensure that this .exe works and is completely safe... it's provided only for the sake of simply helping users with an issue that was never fixed in this game.

For those who think the file contained in this guide may be a virus:
https://www.virustotal.com/en/url/3dbef9b8f797495c848bde034cadea001eaba077798127b07b5241b1891b6833/analysis/1426291679/

LAA = Large Address Aware, aka. 4 GB launcher/loader.

LAA basically allows for a game's executable to use more than the standard 2 GB of RAM. Unfortunately, Steam's "daorigins.exe" file is encrypted and can't be LAA patched; thus this guide requires you replace it with the .exe provided.

This is helpful as it addresses the known memory leak that exists in this game that was never corrected with patches. Basically, when ~ 2GB of RAM was used by the game a lot of users find that their game either: slowed down to a crawl, had long loading times, simply crashed or did a combination of these. As such, the .exe used in this guide aims to remedy all of this. It's apparently the same version as this game and is reported by multiple sites and friends to work fine.

This is only recommended for 64 bit PCs, unless you perform the "3 GB Switch" on your 32 bit PC (allows you to use the full 3 GB of RAM instead of just 2 GB of RAM) : http://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/How-to-enable-a-3GB-switch-on-Windows-Vista-Windows-7-or-Windows-XP-s.html


* Credit goes to Daniel Pistelli for their helpful "4GB Patch" tool ( http://www.ntcore.com/4gb_patch.php ) that is used in this community guide!