Launcher.sea.hqx is a BinHex of a StuffIt self extracting archive.  The
archive contains two files:

* RR Launcher - a small, faceless, background background application
intended to go in the Startup Items folder.  At a specified time of
day, it launches another application (usually RevRdist).

* Configure launcher - In order to keep RR Launcher small, it has no
user interface.  Instead, there is a separate HyperCard stack to
configure Launcher.

.