program Project1;
{$APPTYPE CONSOLE}
uses
  SysUtils,
  IdHTTP,
  IdComponent,
  classes;

var
IdHTTP1: TIdHTTP;
Data: TStringList;

begin
Data := TStringList.Create;
IdHTTP1:= TIdHTTP.Create(nil);
{$R *.res}
Data.add('bla-bla');
IdHTTP1.Post('http://sait.ru' ,Data);
end.