Заметка на память.
{$APPTYPE CONSOLE} uses SysUtils, IdAuthentication, IdAuthenticationNTLM, IdHTTP; type TDummyProxy = class private class procedure OnProxyAuthorization( Sender: TObject; Authentication : TIdAuthentication; var Handled : Boolean ); end; { TDummyProxy } class procedure TDummyProxy.OnProxyAuthorization(Sender: TObject; Authentication: TIdAuthentication; var Handled: Boolean); begin Authentication.Reset; Authentication.Username := '...'; Authentication.Password := '...'; Handled := true; end; begin with TIdHTTP.Create( nil ) do try OnProxyAuthorization := TDummyProxy.OnProxyAuthorization; ProxyParams.ProxyServer := '...'; ProxyParams.ProxyPort := 3128; ProxyParams.BasicAuthentication := false; HTTPOptions := HTTPOptions + [ hoInProcessAuth ]; WriteLn( Get('http://ya.ru') ); finally Free end; end.