[LAU] Lightwheight midi transformer

[M-.-n]

I'm looking for some kind of midi processor that would allow me to convert
midi input (from a controller) into some other midi output (to gear) so that
I can workaround the limitiation of my faderfoxes that have all midi
pre-wired. Would there be an application like that is lightwheight enough I
could run it on my EEE ?

Thanks for any pointers
Marc