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From: John Elliott <jce AT seasip DOT demon DOT co DOT uk>
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Subject: Re: Reading sectors: Error 0x701F
Date: Sun, 16 Apr 2006 20:34:37 +0100
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Rod Pemberton wrote:
> Okay, I didn't look at your code.  Int 25h and int 21h/ax=7305 will work
> under real-mode DOS.  To get them to work under Win98/98SE/ME etc., you'll
> need to add Windows file locking code.  The only working example of this
> that I've found is Orwtin Glueck's "ODI's" LFN Tools:

   I'll have to try that. But I tried using the command-line LOCK tool 
before running the program, and it didn't make any difference. I also 
wrote a 16-bit program to make the same calls, and that could read 
sectors using INT 25h or INT 21h/AX=7305h whether or not I ran LOCK in 
advance.