The CodeXSWebservice is the same webservice used by our CodeXS Online Tool to generate .NET C# and VB code directly from XML schemas (XSD'es)
The CodeXSWebservice has been made available on an experimental basis. Point your web-reference to:
http://www.bware.biz/CodeXS/CodeXS.asmx
Currently, the input schema has to be located at a publicly available URL, but we will probably extend the functionality to allow multiple XSD files to be input as a ZIP-archive, and to return the generated code in a ZIP-archive. This functionality is already supported by the Online Tool.