>> Solution: Mount /tmp to the windows tempdir >> mount -bu $(cygpath -m $TEMP) /tmp >> mount -bu $WINDIR/Temp /tmp Thank you. This worked just fine. I now possess a superb portable CD with stats, emacs, vim, Perl, LaTeX, ..., which I can use in any Windows machine with a CD drive. CD still only 640/700 full. ... Fergus