how do i modify these two files plz ?

[sTeLLa]

hello guys

ive down loaded a file to fix 'no-cd' for warcraft3 ver 1.0
it says i have to:

No-CD Instructions:
Install the game - Full Installation.
Replace the original WAR3.EXE & WORLDEDIT.EXE executables with the ones from the Executable Archive.
Play the Game!

ok now ive only download 1 file and i have too update two files 'WAR3.EXE & WORLDEDIT.EXE executables ' now how do i do this exaclty?
i presume i have to copy and paste my 1 file into 2 areas of warcraft 3?
plz post how exactly i do this in simple terms, do i use windows explorer etc ?

thanks.