* d) If the Program as you received it is intended to interact with
users through a computer network and if, in the version you received,
any user interacting with the Program was given the opportunity to
request transmission to that user of the Program's complete source
code, you must not remove that facility from your modified version of
the Program or work based on the Program, and must offer an
equivalent opportunity for all users interacting with your Program
through a computer network to request immediate transmission by HTTP
of the complete source code of your modified version or other
derivative work.