ok, so here is everything i did:
i created a folder on my (physical) drive h: (h:\amt).
i mounted this folder with "mount c h:\amt".
i used daemon tools to mount the cd of the game "das amt" as drive i:
then i mounted this cd by using "mount d i:\ -t cdrom".
as i said before, i also tried -ioctl and all other parameters but the error remained.
check the screenshot #1 in the attachment for the outpput of the plain mount command! (filename: plainmountbefinst.JPG)
after installing, the mountings are just the same. it means i did not change anything.but i attached a screenshot anyway (screenshot #2 filename: plainmountafterinst.JPG) this is the moment right before i would start the game.
i also attached a screenie from the error message i receive when i start the game. (error.jpg)
it says that the program needs NWCDEX or MSCDEX in order to read from the disk.
i hope this helps...