I need Help plz, cannot start COW Mod

[Saint Galahad]

Hi,

I need some help, i purchased Medieval II via steam and downloaded the mod "Call of Warhammer".
I also downloaded the Launcher for Steam, but when i try to start the launcher a Dosbox pops up:

(Im German so i have to translate it to English...might be not 100%correct)

The Administrator cancelled the command prompt.

press any key to continue....


if i press any key, the same message "press any Key" apperas again

maybe you can help me, thx in advance

[irishron]

Which launcher? The alternate one on Steam or one of them from the Mod Workshop?