How can I use ediff under Windows + NTEmacs?

Question

I have Emacs version 23 on Windows and it seem the ediff executable is missing?

From where can I download ediff for Emacs on Windows?

Answer 1

When you run ediff from emacs, it does indeed look for an executable diff. One way to get it is to install cygwin. You don't have to use Emacs from cygwin to use diff. Just add c:\cygwin\bin (use your cygwin install path) to %PATH% and restart emacs.

Now when you run ediff, it will find diff.exe in your %PATH%.