The next version of IWeb was to include the ability to create IWeb extensions in VB or C# (yet there is still just one webservice.asmx entry point). The problem is that while it worked it required two DotNetNuke modules to be installed at the same time. This caused errors to throw on installation. Also, the uninstall of either module caused the portal to crash because one module would then not have the classes that it was looking for in the other module.
Due to this I decided that while it will be part of the final proposal to the Core, (because if it is part of the Core it wont have these problems) it is too unstable and would threaten the project to release it as an official release.
However you can download it here:
http://www.adefwebserver.com/download/IWeb_Core_02-00-00(Release candidate 2-11-2007(1)).zip
This is unsupported and you will not be able to upgrade it using future releases of IWeb
Only use it if you are a programmer and can resolve any issues that arise
It's purpose is to provide sample code and show you how to implement C# web services for DotNetNuke