The Question is:
CAN UCX UTILITY FROM VMS 6.1 BE INSTALLED ON VAX SYSTEM RUNNING VMS 5.4?
The Answer is :
Please check the TCP/IP Services Software Product Description (SPD)
for the particular OpenVMS version requirements -- some versions of
TCP/IP Services might function, some might not. Without specifics
of the TCP/IP Services version, no specific answer is possible.
You will also need to consider the age of the OpenVMS VAX releases
involved -- neither of these releases is currently considered supported
(either with a standard contract or with a Prior Version Support
contract), and upgrades to OpenVMS VAX V5.5-2 or to V6.2 or (better)
to V7.2 are recommended.