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copied!<p>I personally recommend using AppCmd.exe (matthewthurlow's first bullet) because you don't have to count on the legacy management components being installed, or risk modifying the configuration XML manually.</p> <p>If you are not comfortable with AppCmd, Mike Volodarsky has a great article on <a href="http://learn.iis.net/page.aspx/114/getting-started-with-appcmdexe/" rel="nofollow noreferrer">Getting Started with AppCmd.exe</a>, and the Microsoft <a href="http://www.iis.net/ConfigReference" rel="nofollow noreferrer">IIS Configuration Reference</a> is excellent, offering UI, Code and AppCmd examples for modifying each of the configuration items (e.g. <a href="http://www.iis.net/ConfigReference/system.applicationHost/applicationPools" rel="nofollow noreferrer">Application Pools</a> ). The <a href="http://www.iis.net/extensions/AdministrationPack" rel="nofollow noreferrer">IIS7 Administration Pack</a> also includes a Configuration Editor that allows you to <a href="http://learn.iis.net/page.aspx/417/using-configuration-editor-generate-scripts/" rel="nofollow noreferrer">generate AppCmd scripts</a> from any existing configuration.</p> <p>To integrate AppCmd into WiX, you need to create and schedule two custom actions for each command. There is general information in the WiX v3 manual <a href="http://wix.sourceforge.net/manual-wix3/qtexec.htm" rel="nofollow noreferrer">documenting this procedure</a>, and I've included a concrete example below.</p> <p>First, you need to set up an immediate action to store the command line in a property:</p> <pre><code><CustomAction Id="CreateAppPool_Cmd" Property="CreateAppPool" Execute="immediate" Value="&quot;[WindowsFolder]system32\inetsrv\APPCMD.EXE&quot; add apppool /name:&quot;[APP_POOL_NAME]&quot;" /> </code></pre> <p>Next you set up a deferred action which references this property:</p> <pre><code><CustomAction Id="CreateAppPool" BinaryKey="WixCA" DllEntry="CAQuietExec" Execute="deferred" Return="ignore" Impersonate="no"/> </code></pre> <p>And finally, you need to schedule these. The immediate action that sets the properties seem to work well after InstallFinalize, and the deferred action works after InstallFiles. I haven't got as far as figuring out rollback actions yet.</p> <p>MapGuide Open Source does this method extensively; you can see the CA scheduling in our <a href="http://trac.osgeo.org/mapguide/browser/trunk/Installer/Installers/MapGuide/MapGuide.wxs#L444" rel="nofollow noreferrer">MapGuide.wxs</a> file, and the CA definition in our <a href="http://trac.osgeo.org/mapguide/browser/trunk/Installer/Libraries/MapGuide%20Web%20Extensions/IIS7.wxs#L9" rel="nofollow noreferrer">IIS7.wxs</a> file.</p>

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