raystuttgart
Civ4Col Modder
The installation path looks correct. 
(That should not be the issue then - it does not contain special characters.)
And yes, you have WTP installed.
(I just asked, because you said "RaR".)
I currently do not know though what could cause the issue.
Maybe somebody else from the team has an idea though.

(That should not be the issue then - it does not contain special characters.)
And yes, you have WTP installed.

(I just asked, because you said "RaR".)
I currently do not know though what could cause the issue.

Maybe somebody else from the team has an idea though.