Re: ntvdm encountered a hard error

On Windows I believe you can use CreateFile and DeviceIoControl for this.

Regards
Chris Saunders

"Frank Kotler" <spamtrap@xxxxxxxxxx> wrote in message
news:1rqdnaA-Pff86djYnZ2dnUVZ_oydnZ2d@xxxxxxxxxxxxxx
Galbu wrote:
Frank Kotler wrote:

Shouldn't cause a "hard error", but sector numbering usually starts at 1
(weird, I know). I'm surprised it worked on a floppy.

well, I've actually written cl=1.

anyway, is there any other way to read a drive sector under winXp
without using a locking drive? e.g. another interrupt?

You might try int 13h/45h. In general, if you want to use bios interrupts,
boot to dos. Windows gives you a "fake dos"... and not a very good fake.
(protected mode is protecting your system from *you*, y'know!)

I think there's a Windows API that will read a sector, but I don't know
what it is. Must exist, 'cause there's an "ERROR_SECTOR_NOT_FOUND"...

Best,
Frank



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