System.Net
System.IO

public string GetHtmlPage(string strURL)
{
	string strResult;
	WebRequest	objRequest	= System.Net.HttpWebRequest.Create(strURL);
	WebResponse	objResponse	= objRequest.GetResponse();
	using (StreamReader sr = new StreamReader(objResponse.GetResponseStream()))
	{
		strResult = sr.ReadToEnd();
	}
	return strResult;
}