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email this FAQ to a colleague

Q: What authentication scheme does IIS use when multiple schemes are available?

A: According to the HTTP 1.1 spec in section 15.2 it states that when a server supports multiple authentication schemes that the server should return them to the browser in the order of most secure to least secure (ie: NTCR then Basic User Auth) and the browser should choose the first (most secure) one it supports. IE does follow this, as should other browsers.

- Brooks Cutter

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