High Quality Content by WIKIPEDIA articles! TCPware is a third party layered product published by "Process Software LLC" to add TCP/IP capabilities to OpenVMS. The need for such a product may seem obvious today but back in the early 1990s Digital Equipment Corporation (who published VMS as it was known at the time) had an internal policy favoring their own product called DECnet. Meanwhile, many VMS users in governments, large corporations and universities were discovering the "TCP/IP based" internet and required third party software enable connectivity to it.