ISA Filter (ISAPI) example in VB.NET

I would like a simple example project showing how to build a url and keyword filter into isa server. I belive this is an isapi module. This will ultimately have a database backend, but this does not need to be included in the example, just borne in mind. I do not know if this can be done in VB.net as it is usually done in C. There must be examples around, but I cannot find them and don't have time to keep trawling the web. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Windows server, ISA server