Thanks for that link on the FTP Active vs. Passive filters, it was
very informative.

Question: I went to C1 and found the filter definitions that I wanted
to delete in the NBMRule Container and went ahead and deleted them
from there and then deleted them in fltcfg. They seem to be gone. Do
you think they really went away or could they be hiding in the
backround causing me trouble? In other words: should I still delete
all the files in the NBMRule Container and run the fltsrv migrate and
then recreate all my filter exceptions from scratch?