1. Extract the PCSI kit from the ZIP archive

$ UNZIP "-V" FREE-AXPVMS-SUPERVERSION-V0102--1.ZIP

2. Install the Superversion package to your chosen directory

By default, the installation procedure installs the Superversion package in the SYS$COMMON:[SUPERVERSION] directory. To install it in dev:[dir.SUPERVERSION], use the /DESTINATION parameter of the PRODUCT command.

$ PRODUCT INSTALL superversion
or...
$ PRODUCT INSTALL superversion /DESTINATION=dev:[dir]

4. Superversion can now be started

$ @SYS$COMMON:[SUPERVERSION]SUPERVERSION
or...
$ @dev:[dir.SUPERVERSION]SUPERVERSION