tstring WinUtil::procSpeed() {
    HKEY key;
    tstring result = _T("");
    TCHAR buf[128];
//  ULONG len = 255;

    if(::RegOpenKeyEx( HKEY_LOCAL_MACHINE, _T("Hardware\\Description\\System\\CentralProcessor\\0\\~MHz"), 0, KEY_READ, &key) == ERROR_SUCCESS) {
        DWORD bufLen = sizeof(buf);
        DWORD speed;
        if(::RegQueryValueEx(key, NULL, 0, &speed, (LPBYTE) buf, &bufLen) == ERROR_SUCCESS) {
        result = Util::toStringW(speed);

        }
    }
    return result;
}