VMS Help Sys Parameters, MINWSCNT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The value specified by MINWSCNT is added to the size of the
    process header to establish the minimum working set size.

    On VAX systems, MINWSCNT sets the minimum number of fluid pages
    (pages not locked in the working set) required for the execution
    of a process. The value of MINWSCNT must provide sufficient
    space to execute any VAX instruction. Theoretically, the longest
    instruction requires 52 pages; however, all code can run with 20
    fluid pages. An insufficient value may inhibit system performance
    or even put a process into an infinite loop on some instructions.

    On Alpha systems, MINWSCNT sets the minimum number of pages
    required for the execution of a process. The default value is
    20; the minimum value is 10.

    MINWSCNT is an AUTOGEN parameter.