SQL Server 2005 uses http.sys

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Peter DeBetta in a developer.com article demonstrates how to use SQL Server 2005 to create HTTP endpoints:

So what is an HTTP Endpoint? You may have heard that it is SQL Server 2005's means for creating Web services, but it actually is much more. An HTTP Endpoint also is a means of creating interfaces via HTTP or TCP for SOAP, T?SQL, Service Broker, and even database mirroring. Although these other functions are very intriguing, this discussion concerns only the ability to create Web services in SQL Server—Web services that can return rowset data, scalar values, messages, and even errors, all of which are serialized into XML automatically. And, an HTTP Endpoint does all of this without requiring you to install IIS (it uses the Windows 2003 kernel module http.sys).

...

CREATE ENDPOINT SQLEP_AWProducts
    STATE = STARTED
AS HTTP
(
    PATH = '/AWproducts',
    AUTHENTICATION = (INTEGRATED),
    PORTS = (CLEAR),
    SITE = 'win2k301'
)
FOR SOAP
(
    WEBMETHOD 'ProductList'
        (NAME='AdventureWorks.dbo.prProductList'),
    WEBMETHOD 'ProductStockInfo'
        (NAME='AdventureWorks.dbo.prProductStockInfo'),
    WEBMETHOD 'ProductPhoto'
        (NAME='AdventureWorks.dbo.fnProductPhoto'),
    BATCHES = DISABLED,
    WSDL = DEFAULT,
    DATABASE = 'AdventureWorks',
    NAMESPACE = 'https://Adventure-Works/Products'
)