Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!uwvax!dogie.macc.wisc.edu!csd4.milw.wisc.edu!bionet!agate!saturn!helios!lance
From: lance@helios (Lance Bresee)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Dos File Access In TSR's
Keywords: TSR DOS
Message-ID: <8064@saturn.ucsc.edu>
Date: 21 Jun 89 20:16:29 GMT
References: <157@wbcs.UUCP>
Sender: usenet@saturn.ucsc.edu
Reply-To: lance@helios.ucsc.edu (Lance Bresee)
Organization: University of California, Santa Cruz;  UCO/Lick Observatory
Lines: 8

Isn't there a dos routine which sets the date stamp on a file?
If so, you can get this vector, and have your tsr execute a far jump..
and the end of the routine, there will be an iret instruction, so
dos will jump back to the application rather than back to your
tsr.....
Also, I believe that the interrupt hierarchy makes it impossible to
interrupt a disk read...you may want to check on this though.....
lance..