> Date: Thu, 16 Feb 2012 11:34:16 -0000 > From: "Conceicao, Marieta" <marieta.concei...@uk.bp.com> > > Inn the past I used emacs to compare files,but suddenly I am not able to > do so. > > I have a new PC, and I had to install emacs again, is it possible tha I > install emacs incorrectly? > > When I try to compare files, the program says "it cannot find program".
You need to install the Diff program.