VMS Help PRODUCT, INSTALL, Qualifiers, /REMARK  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /REMARK=string

    Records a comment in the product database about the task you
    are performing. The SHOW HISTORY command displays the recorded
    comments. For each product, the POLYCENTER Software Installation
    utility stores a chronological list of tasks you perform and the
    associated remarks. The default behavior is that no remark is
    recorded.