In IIS 7: how do I set up a default Error Document for any Error

Question

I'd like to user 'error.html' for any error IIS may encounter.

If i state the following block in my webconfig the site refuses to run.

<httpErrors errorMode="DetailedLocalOnly" existingResponse="Replace" defaultPath="/error.html" defaultResponseMode="ExecuteURL">
    <remove statusCode="500" subStatusCode="-1" />
    <remove statusCode="404" subStatusCode="-1" />
	<remove statusCode="403" subStatusCode="-1" />
	<remove statusCode="401" subStatusCode="-1" />
	<error statusCode="401" prefixLanguageFilePath="" path="/401.html" responseMode="ExecuteURL" />
    <error statusCode="403" prefixLanguageFilePath="" path="/403.html" responseMode="ExecuteURL" />
    <error statusCode="404" prefixLanguageFilePath="" path="/404.html" responseMode="ExecuteURL" />
    <error statusCode="500" prefixLanguageFilePath="" path="/500.html" responseMode="ExecuteURL" />
</httpErrors>

Notice the Attribute defaultPath="/error.html" in the root element.

I'm getting the following error

HTTP-Fehler 500.19 - Internal Server Error
...
Konfigurationsfehler: Sperrverletzung
...

Answer 1

Edit %windir%\system32\inetsrv\config\applicationHost.config

Set the Line:

<httpErrors lockAttributes="allowAbsolutePathsWhenDelegated,defaultPath">

To:

<httpErrors lockAttributes="allowAbsolutePathsWhenDelegated">

Answer 2

Try use the IIS 7 Manager to set this properly. Also, you could maybe do this:

<system.web>
    <customErrors mode="On" defaultRedirect="~/error.html">
    </customErrors>
</system.web>