I have another question.

I have an old orginal cd of “Die Siedler” and i try to install it to DosBox.

I have copied the files of the CD to /home/pi/RetroPie/roms/PCtemp/siedler

In DosBox i wrote:
mount c /home/pi/RetroPie/roms/PCtemp/siedler
c:
install.exe

I came to the install menue and try to install it to:
C:\

But then i get an error, that he cant copy the files.

So how can i fix this Problem? Do i have to use an image of the cd ?