Symbian C++ - Open WAP URL

/**
 * Mo mot dia chi URL bang trinh duyet mac dinh cua may
 * Open WAP URL by built-in browser
 */
void VUtil::BrowseWAPWEBPageL(const TDesC& aUrl)
{       
    RApaLsSession apaLsSession;
    const TUid KOSSBrowserUidValue =
        {
        0x10008D39
        }; // 0x1020724D for S60 3rd Ed

    HBufC* param = HBufC::NewLC(64);
    param->Des().Copy(aUrl);//_L("4 http://huypv.net/uploads/demo/Ball.jad")

    TUid id(KOSSBrowserUidValue);
    TApaTaskList taskList(CEikonEnv::Static()->WsSession());
    TApaTask task = taskList.FindApp(id);
    if (task.Exists())
        {
        task.BringToForeground();
        HBufC8* param8 = HBufC8::NewLC(param->Length());
        param8->Des().Append(*param);
        task.SendMessage(TUid::Uid(0), *param8); // UID not used
        CleanupStack::PopAndDestroy(param8);
        }
    else
        {
        if (!apaLsSession.Handle())
            {
            User::LeaveIfError(apaLsSession.Connect());
            }
        TThreadId thread;
        User::LeaveIfError(apaLsSession.StartDocument(*param,
                KOSSBrowserUidValue, thread));
        apaLsSession.Close();
        }
    CleanupStack::PopAndDestroy(param);
}