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From:	Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Sharing violation reading myself
Date:	Tue, 29 Aug 1995 12:08:02 CDT
Organization:	Rice University, Houston, Texas
Lines:	9
References:	<DE1w68 DOT EIr AT cfanews DOT harvard DOT edu>
Reply-To:	sandmann AT clio DOT rice DOT edu
Nntp-Posting-Host:	clio.rice.edu
To:	djgpp AT sun DOT soe DOT clarkson DOT edu
Dj-Gateway:	from newsgroup comp.os.msdos.djgpp

> I have djgpp 1.12maint4 program which reads its .EXE file and does an
> integrity check.  Under DOS, the open fails if SHARE.EXE is loaded, but under
> OS/2, which provides share-like features, the open succeeds.  It also

This is very probably a DPMI vs non-DPMI issue.  Under DPMI it reads the
image into memory and then closes the handle on the file.  Under non-DPMI
it keeps the handle open while the image is executing so it can demand
page code sections in.  V2 reads the image and then closes the file, so
you shouldn't have a problem.

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