Requires: .Net Framework 3.5 or newer
Version 1.4 (Aug 09 2011)
Here's an app that lets you add/edit/remove mods from the kingdoms launcher, this was designed to work with the steam version specifically, but it may work with the non-steam versions as well, but I don't have that version so I can't check.
Run the program and you'll see the mods currently loadable through the launcher. You can add/remove/edit the mods available as well you can re-order the mods. The launcher seems to look for mods to be in a mods/XXX folder where XXX is the mod name.
NOTE: The mod folder cannot have any spaces in it or the Launcher will crash when trying to launch the mod.
Change Log for Version 1.4