If oschatz' advise won't help, try the following:
1. deinstall RotWK and BfME II
2. Go to the "Electronic Ars" folder and delete the folders of the game and it's addon.
3. Install BfME II
4. Patch it to version 1.06
5. Install the expansion pack RotWK
6. Patch RotWK to version 2.01
7. Download and install Edain Mod version 3.6
8. Download and install Edain Mod version 3.6.1
Summarized: Maybe you have to reinstall Battle for Middle-Earth, too.