Everhart, Glenn From: Jamey Kirby [jkirby@mkallc.com] Sent: Tuesday, July 07, 1998 1:30 PM To: Armando Martinez Cc: ntdev@atria.com Subject: Re: [ntdev] Read/Write disks sector Rather than opening the drive letter, open the physical device (\\.\PhysicalDrive(n)) where (n) is the physical drive number. This will allow you to read all of the physical sectors from the disk (i.e. sector 0 = MBR).   Jamey Kirby Senior Partner Magnuson, Kirby & Associates, LLC jkirby@mkallc.com www.mkallc.com   -----Original Message----- From: Armando Martinez < arm@seg.inf.cu > To: DDKList < ntdev@atria.com > Date: Tuesday, July 07, 1998 10:29 AM Subject: [ntdev] Read/Write disks sector Hi   I need to read/write disk sectors, including 3 1/2 disks and Hard Disks, over windows NT. But I need a single solution, nothing about to write a driver. I can r/w logical sector using CreateFile, but I need to r/w fisical sectors!! Is posible using DeviceIOControl obtain somo kind of access to fiscal sectors, at least for floppy disks?? Another solution??   thanks in advance Armando