发送下载请求,返回结果:Bad Request (Invalid Hostname)

BOOL DownLoadEye()
{
BOOL bResult;
CInternetSession session;
CHttpConnection* pConnection = NULL;
CHttpFile* pFile = NULL;

TRY
{
pConnection = session.GetHttpConnection(_T(m_cstrWebSite));

pFile = pConnection->OpenRequest(CHttpConnection::HTTP_VERB_GET,"/jxcsoft/jxcsn/jxcsn-net.exe");
pFile->AddRequestHeaders("Accept: */*");
pFile->AddRequestHeaders("Range: bytes=3075801-");
pFile->AddRequestHeaders("Unless-Modified-Since: Mon, 27 Oct 2008 09:03:40 GMT");
pFile->AddRequestHeaders("Referer: http://www.newhua.com/soft/");
pFile->AddRequestHeaders("User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)");
pFile->AddRequestHeaders("Host: www.1551.net");
pFile->AddRequestHeaders("Connection: Keep-Alive");


BOOL bRet =pFile->SendRequest(NULL,0,NULL,0); //提交所有数据
if( bRet)
{
CStdioFile csf;
csf.Open("d:\\Ld.rar",CFile::modeCreate|CFile::modeWrite|CFile::typeBinary);
char buf[2048];
int n;
while((n=pFile->Read(buf,2048))>0)
{
csf.Write(buf,n);
}
csf.Close();

pFile->Close();
bResult=true;
}//if( bRet )
else
{
/// 无法连接远程服务器
bResult =false;
}
pConnection->Close();
session.Close();
}
CATCH_ALL( e )
{
}
END_CATCH_ALL

if( NULL!=pFile )
{
delete pFile;
pFile = NULL;
}
if( NULL!=pConnection )
{
delete pConnection;
pConnection = NULL;
}

return bResult;
}