1 /BASE_SYSTEM
       /BASE_SYSTEM=(base-system-name[,...])
    Selects software products whose base system matches the one
    specified. The base system name identifies both a hardware
    platform and an operating system. Standard names are:
    Name          Description
    AXPVMS        Denotes an OpenVMS Alpha product.
    I64VMS        Denotes an OpenVMS I64 product.
    VAXVMS        Denotes an OpenVMS VAX product.
    VMS           Indicates a product that can be installed on more
                  than one OpenVMS platform.
    Parentheses (())  are optional only when you specify a single
    base system name. They are required when you specify multiple
    base system names.
2 /FULL
       /FULL
       /NOFULL (default)
    Displays information in 132-column format. The /NOFULL qualifier
    displays a subset of available information in 80-column format.
3 /PRODUCER
       /PRODUCER=(producer-name[,...])
    Selects software products that the specified manufacturer
    produces.
    Note that the PRODUCT SHOW HISTORY command allows you to specify
    both the /PRODUCER and /PRODUCT qualifiers, which you need to
    spell out because they are not unique within the first four
    characters.
    Parentheses (())  are optional only when you specify a single
    producer name. They are required when you specify multiple
    producer names.
4 /PRODUCT
       /PRODUCT=(product-name[,...])
    Selects products with the specified product name.
    Note that the PRODUCT SHOW HISTORY command allows you to specify
    both the /PRODUCER and /PRODUCT qualifiers, which you need to
    spell out because they are not unique within the first four
    characters.
    Parentheses (())  are optional only when you specify a single
    product name. They are required when you specify multiple product
    names.
5 /REMOTE
       /REMOTE
       /NOREMOTE (default)
    Selects the product database located on a privately mounted
    system disk. By default, PCSI searches the currently booted
    system disk for the product database.
    When you use /REMOTE, the following logical names must be
    defined:
    o  PCSI$SYSDEVICE must specify the physical disk name of the
       target system disk. This disk must be mounted and allocated to
       the process executing the PRODUCT command.
    o  PCSI$SPECIFIC must point to a system root on PCSI$SYSDEVICE.
       It must be defined in the following form, where x is a valid
       system root:
       PCSI$SYSDEVICE:[SYSx.]
6 /TYPE
       /TYPE=(object-type[,...])
    Selects one or more class of objects to display. Keywords are:
    ACCOUNT            Selects account objects.
    DIRECTORY          Selects directory objects.
    FILE               Selects file objects.
    IMAGE_LIBRARY      Selects image library objects.
    LOADABLE_IMAGE     Selects loadable image objects.
    MODULE             Selects module objects, including command
                       definition, help, macro, object, and text
                       library modules.
    NETWORK            Selects network objects.
    RIGHTS_IDENTIFIER  Selects rights identifier objects.
7 /VERSION
       /VERSION=(version-number[,...])
    Selects software products that have the specified version.
    Parentheses (())  are optional only when you specify one version
    number. They are required when you specify more than one version
    number.