CDrwin & aspi manager and SCSI

When I load CDRwin I get "Unabable to initialize the ASPI manager. ASPI manager was not found on the system." I checked the settingings in CDRwin, and tried to fix things. But it still wont work. It also says "no cd rom reading device was foundon the SCSI or IDE bus".Can someone please help me to run cdrwin

Thanks