UltiDev Cassini Web Server for ASP.NET Applications

This is a free standalone web server for .NET 1.1 and .NET 2.0.

http://www.ultidev.com/products/Cassini/index.htm

Microsoft SQL, stored procedures, optional parameters

Here is a good article on the pros/cons and performance considerations of using optional parameters in SQL stored procedures:

http://www.sommarskog.se/dyn-search.html

Calling Web Services from SQL 2005

Here is an article on how to call Web Services from SQL 2005. The article addresses SQL triggers, but the same approach can be used for user-defined functions or stored procedures.

http://www.codeproject.com/KB/database/SQLCLR.aspx