[rdiff-backup-users] excluding a directory, Windows version

[Ryan]

Hello,

I am running under Windows, rdiff-backup v 1.3.0

I am trying to figure out how to exclude a directory (my firefox cache directory), but I cannot figure the syntax out.  I've read Windows-README.txt but I am still confused.

As a test, I have made a tree called:

e:\winx\temp\my folder\a\b\

I want to back up "my folder", and everything under it, except the "b" directory,

to e:\winx\temp\my backup\

What is the correct way to do this?