Possible to edit .exe or .dll files?

[crazykilla]

Hello, im CrazyKilla

I have been wondering for a while, what if theres a game and i want to edit it's dll files or exe files? theres a game called amnesia and i want to add a extra button on the game's launcher, but i do not know how, i managed to download a couple programs that can do things like take the exe appart, or read some dll files but not with much success, if i take appart the exe i get 3 files, .text, .data, .rdata, and a folder called .rsrc with icons of the exe in it, i see the icons, sadly i havent found any way of opening the text or data files, the dll files ive managed to open, read and edit save, but then it doesn't change anything or if i modify the exe code it saves but then doesn't launch, help please, or if you are 100% confident then tell me wheather it's possible or not possible, (obviously possible because it's made by humans lol, but is it possible for a random person like me?)

 

[logicearth]

No you cannot edit DLLs or EXEs file without a lot of knowledge and experience. They are binary files not text documents.

 

[crazykilla]

i have the knowledge, and 8 years on the pc, i can code do lots of things but there is no one out there who can tell me how to do this or who ever wanted to or bothered to...

 

[logicearth]

Do you know how to program in raw binary? Also in an Assembly language?

 

[Alejandro85]

Well, it is possible to do it, in theory. But it's extremely difficult to do it properly. Basically, both EXEs and DLLs are code files, which contain the game's executable code and some data too. Your tool most likely was a resource editor that can show and change the data part of the files. Changing the code is quite difficult and involves a lot of knowledge of the internal game working and system programming. Not something an average computer user knows how to do.
You may search a little for forums or resources specialized in that particular game to see if someone managed to crack the game and modify it. That's the way mods and some other minor modifications are made for some games.