[Cpt_Biggles]

Thank you, Donald, that made it clear. It is my fault. I named the ziped folder "zip_Alpen_beta.zip." But it must be unzipped to a folder ....\maps\mapmods\zip_Alpen" without the "beta", because the line in the all.ini tells the game to look to a folder ...\zip_Alpen.

So just rename the "zip_alpen_beta" folder to "zip_Alpen" and it should work,

I' sorry for that.

that did the trick, cheers.