Hi,
ImprimChèque is a french soft which was created by Jean-Pierre DZIDO.
It is (just) to print checks but it does this very well, by providing check format of different banks and to create models, etc.
I spoke with Jean-Pierre of the idea of real portability practiced by portableapps.com and he seems to be very happy with this idea.
His website: http://www.lalimacefolle.com/
Regards
Thomas.