Link.bin is the linker. It takes a top object .sob file and links it together with any child .sob files it requires, producing a .bin file.
Usage:
link filename [options]
Options:
/i -- ignore out-of-date errors.
/v n -- set verbosity to 0, 1, 2, or higher (default is 0). The higher the verbosity, the more messages link.bin prints as it runs.