Well, a simple Perl script would do this. You could run it with httrack using
the -v option, or run the script over the resultant web data after the fact.

Perl offers the advantage that the process can be automated, as opposed to you
having to open up another program and manually run it.

Actually, this page (http://www.bastet.com/software/software.html) has a
command line program that can be run on windows that does what you want - look
about 1/3 down the page (DOS2UNIX and UNIX2DOS)

Steve