Dll edit and dll editor sofware

Hi, first question is how to edit hack
Which program should be editing and hacking
Would you recommend a resource or type your program

You'd expect a professional advice, please help me to hack Dll

If you want to edit .dll files i can say you thats not possible.(I think)

If you wanna edit .exe hacks i heard something about an decompiler(i dont know if this is true).

dll pls edit update program