{this is useful to if your running a application on a remote PC and you
need the app to send you information on its status.}
type
 TForm1 = class(TForm)
 btnSend: TButton; //button to send the message
 edtPC_name: TEdit;//edit that contains the remote PC name
 edtMessage: TEdit;//edit that contains the message to send
 procedure btnSendClick(Sender: TObject);
 private
 { Private declarations }
 public
 { Public declarations }
 end;
var
 Form1: TForm1;
implementation
{$R *.DFM}
procedure TForm1.btnSendClick(Sender: TObject);
begin
 // sends message
 winexec(pchar('Net send '+edtPC_name.text+' '+edtMessage.text),0)
end;