DEC C Version 5.3 for OpenVMS Alpha Systems requires OpenVMS Alpha Version 6.1 or higher. Future DEC C releases may require higher versions of the OpenVMS operating system, as described in the online release notes or the Read Before Installing or Using DEC C Version 5.n for OpenVMS Alpha Systems letter.
The OpenVMS operating system comes with a variety of support options, or classes. Classes include such features as networking and RMS journaling. To use DEC C, your system should be running a version of OpenVMS Alpha that includes the following classes:
For a complete list of the required classes, see the DEC C Software Product Description (SPD).