Date   : Fri, 13 Apr 1984 08:13:05-CST
From   : John Otken <CC.Otken@UTEXAS-20.ARPA>
Subject: Re: Archive Program

The "one wee little" BDOS patch used by one of those programs goes
into the disk directory checksum bytes beginning with drive E so you
might want to be careful using it.

BTW, the "archiving" program I wrote uses the T3 bit but does not
alter the BDOS.  I know this is broken for random access files but
big deal, we don't use any.  Could there be something else I didn't
think of?