In some of my Web projects I’m using the <remove name=”…”/> tag in web.config section system.web/httpModules. When you’re using the appcmd migrate config command not all removed httpModule configurations are copied to the new section below system.webServer.

Before:

<system.web>
    <httpModules>
        <remove name="PassportAuthentication" />
        <remove name="Profile" />
        <remove name="AnonymousIdentification" />
        <remove name="BlockModule" />
    </httpModules>
</system.web>

After:

<system.webServer>
    <modules>
        <remove name="Profile" />
        <remove name="AnonymousIdentification" />
    </modules>
</system.webServer>

Why is PassportAuthentication and BlockModule not added to be removed? Well, it is simple to modify your web.config manual, but I would like to know what the difference is.

If you’re reading my blog you may have noticed another bug using appcmd.

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