Xref: utzoo comp.sys.ibm.pc.programmer:1711 alt.msdos.programmer:1683
Path: utzoo!yunexus!ists!helios.physics.utoronto.ca!news-server.csri.toronto.edu!utgpu!ria!pruss
From: pruss@ria.ccs.uwo.ca (? pruss)
Newsgroups: comp.sys.ibm.pc.programmer,alt.msdos.programmer
Subject: Software interface to drive/directory mapping
Summary: Hacker seeks to know how SUBST/JOIN work so he can duplicate them.
Keywords: Mess, DOS, MSDOS, PC, SUBST, JOIN, 3.3, 4.01, drive, dir, mapping, Microsoft data release
Message-ID: <431@ria.ccs.uwo.ca>
Date: 29 May 90 20:46:07 GMT
Article-I.D.: ria.431
Followup-To: comp.sys.ibm.pc.programmer
Organization: University of Western Ontario, London
Lines: 15

Basically I am wondering what SUBST and JOIN actually do.

Is there some portable way of accessing the SUBST/JOIN data area?
I found it at a different address under DOS 3.3 and 4.01.  Also,
has the format of this data area been released?

It seems that this data area lists the actual unmapped drive:path
for each drive letter and indicates whether the mapping is from
drive:path -> letter or letter -> drive:path. 

I would be interested in a way of doing the drive/dir mapping under
software control.

--;--
pruss@ria.ccs.uwo.ca     //    pruss@ria.UUCP