Writing own WoW Patches, possible?

[Tirnanok]

My question is: I want to rewrite a blizzard patch with my data, what do i have to do for this? After this it should, like every Patch of Blizzard, install itself after one klick.
I don't want to load Hackpatch with WoWME or other Programs!!!
Hope you can help me!
Deutschsprachige antworten sind natürlich auch Wilkommen!

[merfed]

Yes it's possible, just figure out the signature check. Good luck.

[schlumpf]

Yes its possible, ignore the signature check.

First step is getting the archive out of a existing patcher and look into it. See how its made up and then change the things you want. Second one is getting the little error, the patcher may throw, away. Happy ASM.