man if u use the ! it wont work, u need to use the ascii code, i've done it today, ill put it on now :P
1)Download autospammer from here:

2)extract and write in links.txt your message (without the ! before)
3)start 2moons and close all the other windows
4)double click on 2moonspammer60.exe for autospamm every 60 seconds and
double click on 2moonspammer360.exe for autospamm every 360 seconds
enjoy it
PS: i think u'll need the gabxxx bypass from gamerstool