Path: utzoo!attcan!uunet!lll-winken!ames!mailrus!tut.cis.ohio-state.edu!pt.cs.cmu.edu!b.gp.cs.cmu.edu!Ralf.Brown@B.GP.CS.CMU.EDU
From: Ralf.Brown@B.GP.CS.CMU.EDU
Newsgroups: comp.sys.ibm.pc
Subject: Re: This is how to use commands (including PATH) > 127 characters
Message-ID: <24d1459d@ralf>
Date: 29 Jul 89 05:50:21 GMT
Sender: ralf@b.gp.cs.cmu.edu
Organization: Carnegie Mellon University School of Computer Science
Lines: 19
In-Reply-To: <2560@lll-lcc.UUCP>

In article <2560@lll-lcc.UUCP>, coleman@lll-lcc.UUCP (Sam Coleman) wrote:
}If you replace your COMMAND.COM with a shareware product called 4DOS,
}you can use DOS commands, including environment variables like PATH,
}up to 255 characters long.  It has a lot of other nice goodies as

Yes, you can have a line of 255 characters, but you still can't pass a command
tail of more than 126 characters to any program.  That is a hard limit imposed
by the static allocation for the command tail (1 byte for the length, 127
bytes for the actual tail followed by a CR) in the PSP.  Thus, 4DOS truncates
the command tail when invoking an external program.

SET and PATH are internal commands, so 4DOS can indeed set paths longer than
126 characters.
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