This patch allows you to spawn almost every wmo and m2 existing in the Warlords of Draenor 6.2.3 client as a GameObject on your server. It requires both client and serverside modification. Read the readme file.
If you're not using TrinityCore then you might need to inspect the SQL file and make sure it works for you. To answer whether or not this can be used on earlier versions of WoD: I have no idea.
