How can I use these mods?
The easy way: Download Two Worlds Control Panel and use the Addin "Mods" to download, install and enable the mod automatically.
Alternative you can do it manually:
Download your desired mod, unpack if it's zipped and copy the containing .WD-Archive to following directory:
<installation path>\Two Worlds\Mods
To activate this mod in Two Worlds, you have to enable it by creating this registry value (valid from version 1.5):