No, but it's better.
pawn Code:
public OnPlayerConnect(playerid)
{
new file[64], pname[MAX_PLAYER_NAME];
GetPlayerName(playerid, pname, sizeof pname);
format(file, sizeof file, "/applies/%s.ini", pname);
if(fexist) SendClientMessage(playerid, red, "You have already made your application!");
else SendClientMessage(playerid,green,"Wanna apply for Administrator ? Type /aa for a IN-GAME Admin Apply!!");
return 1;
}