Copy the proper dynamic libraries from a Solaris 2.4 system. See Notes on using Solaris 2.5.
See Finding UNIX Programs' Dynamic Dependencies and Finding Programs' Dependence on OpenVMS Shareable Libraries.
You have to use the same (or higher number) Multinet version as the one that the executable was linked with. See Finding Programs' Dependence on OpenVMS Shareable Libraries. MULTINET_SOCKET_LIBRARY is a logical name for the shareable socket library. Also see OpenVMS DEC-Alpha Requirements.
You can rebuild programs at MIPS, or we can do it for you. See Alternatives to Rebuilding On Your System.
Edit [VICAR.RTL.INC]xvmaininc.h to set SYBASE_AVAIL_OS to 0. See Rebuilding Without Socket (Network) Support.