Resources and packers

[redbull]

Some clues might be gathered from the UPX source code

Here are some interesting aticles for you

Relocation stripper and source
hxxp://www.jrsoftware.org/striprlc.php

Also check out the Morphine v2.7b src

Here is a story on Woodmann about the resource seciton
hxxp://www.woodmann.com/forum/showthread.php?t=4909&highlight=write+packer

Here is Writing Your Own Packer - by BigBoote
http://addict3d.org/index.php?page=viewarticle&type=security&ID=256


However all those articles dont quite answer your questions fully

Hope this helps!