The assembly you listed is an assembly we wrote for the GELink tool
which takes the KML output and rewrites it as UTF-8, since that is the
encoding that works for all languages in Google earth. It makes sense
that it would not be loaded till pretty far into the process. As to
why it is not loaded, I can't be sure. By default, an assembly in the
TOOLS folder (where we install it) would not be found if you moved all
the MBX code to another folder. You might need your own copy. Did you
copy that assembly to your MBX folder or put your code in the TOOLS
folder. You can register your app as a tool as well.
Eric