msrtcli.dll c# wrapper. MSRTStartMsgService function

[DllImport("msrtcli.dll", CharSet = CharSet.Unicode, CallingConvention =  CallingConvention.Winapi)]

public static extern bool MSRTStartMsgService(

   [In, Out] IntPtr lpdwServiceID,

   [In] IntPtr lpfnNotifyProc,

   [In][MarshalAs(UnmanagedType.LPStruct)] MSG_FILTER_STRUCT lpMsgFilter,

   [In] UInt32 dwNotifyMask,

   [In] UInt32 lpvUser,

   [In, Out][MarshalAs(UnmanagedType.LPStruct)] CMN_ERROR_MANCLASS cMN_ERROR_MANCLASS

);