public static extern bool SetSecurityDescriptorDacl(NativeMethods.SECURITY_DESCRIPTOR pSD, bool daclPresent, IntPtr pDacl, bool daclDefaulted);
public static extern bool InitializeSecurityDescriptor(NativeMethods.SECURITY_DESCRIPTOR SD, int revision);
public static extern int MQSetQueueSecurity(string formatName, int SecurityInformation, NativeMethods.SECURITY_DESCRIPTOR SecurityDescriptor);