Folder Comparisons Via Command Line

Question

I want to compare two folders on Windows (Vista, XP) which have a large number of huge files, which I need to compare. If I use Beyond Compare or such tool to compare the fo

Answer 1

Basing on answer of Martin Tournoij I'v written next (and it working well):

del a.txt
forfiles /P %1 /M *.c* /S /C "cmd /c comp /a @path @file /M" >> a.txt
forfiles /P %1 /M *.h /S /C "cmd /c comp /a @path @file /M" >> a.txt
forfiles /P %1 /M *.s /S /C "cmd /c comp /a @path @file /M" >> a.txt

It looks in subdirectories and don't ask any quiestions...