Modify or add resources in compiled exe

[alex_evil]

Exe copies self to exe2, runs exe2 and exits, then exe2 modifies exe, then it runs exe and exits, then exe deletes exe2 and exits.

Thank's Gintaras!
I like to try your first solution but I did not understand very well the following passage: "then exe2 modifies exe"
I try to implement it following your links.

Thank's
Alessandro