The OS installer and the machine's owner are responsible. Same thing for DRIVERS. Microsoft doesn't supply them.

As to DMA, the formula is simple for me. Here's my list...

1. Latest motherboard BIOS.
2. 80 conductor IDE cables.
3. Motherboard Drivers.
4. http://www.microsoft.com/whdc/hwdev/tech/storage/IDE-DMA.mspx

And never a trip to the registry...

Bob