private static extern Int32 LsaLookupSids(

    Declare Auto Function LsaLookupSids Lib "advapi32.dll" (PolicyHandle As IntPtr, Count As Integer, ByRef Sids As IntPtr, ByRef ReferencedDomains As IntPtr, ByRef Names As IntPtr) As Integer

     *      LsaLookupSids

    internal static extern uint LsaLookupSids(

        ret = Win32Sec.LsaLookupSids(lsaHandle, lsaInfo.Length, buffer, out domains, out names);