There are two different distributions of each edition of
MailMan version 2.0, a Unix distribution and an NT
distribution.  In reality either distribution should work on
any server, but we have found it to be more convenient for
our users to package the application in a way that is more
targeted to the final platform.  The primary difference
between the two distributions is that the files in the NT
distribution have been processed so that the lines in the
mail MailMan source file end with a CRLF, while the lines in
the same file in the Unix distribution are terminated with a
simple LF.  If you don’t know what that means, don’t worry
about it, it’s really not that important usually.  Another
difference is that the main MailMan source file in the Unix
distribution is called “mailman.cgi”, while the same file in
the NT distribution is called “mailman.pl”.  We have found
that this arrangement reduces confusion in most cases.  If
you disagree about our file naming conventions you are
perfectly welcome to rename the files to whatever you want.