DOS's times have already passed but i'd like to understand how RE can be applied to this kind og programming. Who can advise a good resource of tuts or whatever?
Thanks
PS: I'd like to admit that i used the search engine on this bulletin but unfortunately i didn't succeded, and noone engine didn't help me.

Something musta gone terribly wrong when you searched, coz what some people consider "the holy tuts" are hosted on tsehp's site - orc's tuts. They're mostly on dos cracking.

Also try some Buckaroo Banzai, he once did a huge mother on dos cracking.

Fake