Path: utzoo!utgpu!watmath!watdragon!trillium!bjhicks
From: bjhicks@trillium.waterloo.edu (Barbara Hicks)
Newsgroups: comp.sys.ibm.pc
Subject: How to Undelete files
Summary: where does DOS keep the information ?
Keywords: undelete dos fat
Message-ID: <12544@watdragon.waterloo.edu>
Date: 21 Mar 89 16:48:59 GMT
Sender: daemon@watdragon.waterloo.edu
Reply-To: bjhicks@trillium.waterloo.edu (Barbara Hicks)
Distribution: can
Organization: U. of Waterloo, Ontario
Lines: 15

I have a question concerning undeleting of files under DOS.

From looking at the fat tables on diskettes, it would appear that DOS will
clear out the fat when you delete a file.  But in the directory, it will keep
the address of the first cluster of the file.  But where is the rest of the
information necesssary to undelete a file ??  I have checked what I thought
to be the second copy of the fat, and it (of course) matches the first copy. 

So, where does DOS hide the information necessary to undelete a file ?
Somewhere it must keep the chain of clusters that the file is in.

Please respond by mail directly.  I can summarize to the net later.

Barbara Hicks
bjhicks@trillium.waterloo.edu