public bool VerifyName(string username, string SessionID, string ServerHash)
{
WebClient request = new WebClient();
String result = request.DownloadString("http://session.minecraft.net/game/joinserver.jsp?user=" + username + "&sessionId=" + HttpUtility.UrlEncode(SessionID) + "&serverId=" + ServerHash);
if (result == "OK")
return true;
else
return false;
}