Making Hack Problem.......

Hi all
I have a problem with C++
If I wanna make a hack I must paste
the code..... BUT where???
and how must I save the file as a .dll
I need to help to making codes but
me first code I have clear so
help me pls

PM or VM coders like @assassin's creed or @necro. BTW, if your planning to copy and paste a code from what you find on internet, it's called leeching. Make your own hack.