VMS Help RUN, Process, Qualifiers, /MAXIMUM_WORKING_SET  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /MAXIMUM_WORKING_SET=quota

    Specifies the maximum size (up to 64K pages) to which the image
    being executed in the process can increase its working set size.
    An image can increase its working set size by calling the $ADJWSL
    (Adjust Working Set Limit) system service.

    The default quota is the quota established at system generation
    time. The minimum value required for any process to execute is 10
    pages.

    The maximum working set quota is nondeductible.