I'm not sure how this should be handled, either with this particular program or 
others.  But with later versions of DOS (in the Windows 9x era) you can have as 
many as 32 drive letters instead of just 26 by putting some like LASTDRIVE=32 
in CONFIG.SYS.  I don't know if FreeDOS supports that or not, but if you want a 
program to work with all versions of DOS it does need to support more than 26 
drive "letters".  The drive "letters" in that case are the 6 ASCII codes 
directly above "Z", which are:

  [\]^_`

Needless to say, those are troublesome to parse on the command-line as drive 
"letters". particularly the "\".  I've heard that 4DOS has a way to escape 
those characters on a command-line so they can actually be used as a drive 
"letter", but I've never experimented.


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