It is not in the zip. The first version was exclusively freeware for users of the IMS mail server. In early 1997 a commercial version for users of MailSite was released. The software is now freeware. Our policy has changed.
All users can now use the filter free of charge.
The reason for this change is that the only extra thing the MailSite users would get is official phone support. All the other goodies are now available for download. Our thanks to those that have supported our effort. In addition with the current generation of freeware plugins it can now be used as a data recorder, mail redirector and soon as a virus checker in conjunction with various anti virus packages. Be sure to check out the IMS support page for the latest list of plugins.