Hi Da Chosen One,
>> Would anyone know if the WCF 4.0 is compatible with SQL 2000?
As far as I know, it is available to connect to SQL Server 2000 via ADO.NET. As for understanding Web Services Description Language and implementing a document for it, I would like to recommend you open a thread with detail requirement on
Windows Communication Foundation (WCF) forum for better assistance, since this forum is for data access to SQL Server.
Stephanie Lv
TechNet Community Support
