HP's Distributed Computing Environment (DCE) for OpenVMS Alpha and
  OpenVMS I64 provides an important enabling software technology for the
  development of distributed applications.  DCE makes the underlying
  network architecture transparent to application developers. It consists
  of a software layer between the operating system/network interface and
  the distributed application program.  It provides a variety of common
  services needed for development of distributed applications, such as
  name and time services, security, and a standard remote procedure call
  interface.

  DCE for OpenVMS Alpha and OpenVMS I64 consists of the following four
  kits:

      - DCE Runtime Services Kit
      - DCE Application Development Kit
      - DCE CDS Server Kit
      - DCE Security Server Kit

  The right to use the Runtime Services Kit is included as part of the
  OpenVMS license. The other kits each require a separate license.

  You must install a kit on each system that will use DCE services.