//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{

　　IdHTTP1->Request->UserAgent = "Mozilla/4.5 [ja] (WinNT; I)";

　　Memo1->Lines->Text = IdHTTP1->Get("http://pc2.2ch.net/test/read.cgi/tech/1045542179/l10");

}
//---------------------------------------------------------------------------
としてみたが問題なくコンパイルできるし動いてるよ
9.0.11だす