When you will write your script you must to compile them to binary form. To
do that use EarthC.exe tool. Call it as follows:
EarthC.exe sourceScript.ec sourceScript.eco
As you can see binary EarthC file must have extension '*.eco'. You must copy
this script to directory depends on script type. Look at Scripts
directory structure to check it. Also note that game type scripts for
multiplayer must be placed in 'Scripts\Gametypes' directory and for skirmish in
'Scripts\Gametypes\single' directory.