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

    The MIBCOMP command is used to compile SNMP subagent source files
    in ASN.1 format.

    The compilation process produces two template C programming
    modules that are used in building the executable subagent code.
    When you run the compiler, specify all the ASN.1 source files for
    a given subagent. Whenever any of these source files are updated,
    you must repeat the compilation process.