So you have installed IIS 7 on Vista, you go to configure your authentication and low and behold, by default, “Windows Authentication” is not in the list.
To resolve this, within vista, Open Control Panel -> Programs and Features -> Turn windows features on or off -> Scroll down to IIS, expand all of the nodes to find the ‘Security’ node within there – and there it is, “Windows Authentication” is unchecked – as is “basic authentication”. Check the providers you want, then click OK.
Hope this helps some poor soul.
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