void main()
{
object oPC=GetLastUsedBy();
object oLoop=GetFirstPC();
string sMessage="Online player list:";// See i added a ;
while (GetIsObjectValid(oLoop))
   {
   sMessage+="\n"+GetName(oLoop)+" is online \nlocation: "+GetName(GetArea(oLoop));
   oLoop=GetNextPC();
   }
SpeakString(sMessage);
}