Cheats Messiah

I got Messiah cheats but can’t activate them…
I press ESC but get the same window each time.
I can’t type cheats in,got allways the same window…options,load etc.
What i’am doing wrong?

i dont have the game but mabe you you cant try this:
go to run and go to the directory where you have messiah like this=

c:\games\messiah +setconsole1
in the game press ~ and type your cheats mabe it works or not?