It says that I need to insert the cdrom and for me to insert it into D drive, would I have to copy Dungeon Keeper 2 on Nero or does this mean that it won't work.
download and install Daemon Tools when you reboot you will see a new icon down near your time right click on that icon goto emulation select all on then goto virtual drive then mount and select your image (mds/mdf,iso,cue/bin) this will make your computer think that the disk is in a drive or you could try burning a disk in nero but copy protection may prevent it from working