We have an IDE cdrom that has the IDE interrupt disabled by default. It seems that Windows 2000 prior to Service Pack never enables the IDE interrupt by writting to the Device Control Register but yet the drivers are interrupt driven.
It seem Microsoft has recognized this problem and fixed it in SP4 since SP4 does enable the interrupt before doing enything else. Does anyone know how I can make the IDE drivers prior to SP4 to not use the interrupt or make them enable the device interrupt so my IDE cdrom device can work with windows 2000 SP3 or earlier.