Iis – How to find IIS web application dependencies using Powershell and webadministration on Server 2012

iispowershellwindows-server-2008-r2windows-server-2012-r2

Wondering if someone can help with this.

I have a number of servers that host IIS 7.5 and IIS 8.5 web application of various types. As these are production web applications and servers i can't install any software on the server so i must find a way to remotely interrogate the server to retrieve the windows feature dependencies per web application.

I am aware already the I can use msdeploy to get the dependencies but that means i need to install the msdeploy software on the server which I cant do.

Also I am aware that I can use the Get-OSFeature to remotely retrieve the Windows features that are installed on a particular server. This also is not useful as i need to connect to the web application to get the dependencies of the application.

So can this be done using powershell and Get-WebConfiguration and if so can someone show me as i have so far only been able to get the installed features using this method also eg.

Get-WebConfiguration system.webServer/* 'IIS:\sites' -Recurse

Thanks

Best Answer

If you are happy with msdeploy, you can just use it without installing it.

Create a temporary folder on the server, find an existing installation on Web Deploy 3.5 and copy the files from:

C:\Program Files\IIS\Microsoft Web Deploy V3

You can skip all the language folders you don't need.

Navigate into your new directory as elevated admin and just use msdeploy.exe.

When done, just delete the folder.

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Whilst I'm still not sure exactly what the IIsProviderSnapIn snap-in is compared to WebAdministration, I've ended up with a modified version of an answer to https://stackoverflow.com/questions/1924217/powershell-load-webadministration-in-ps1-script-on-both-iis-7-and-iis-7-5
which loads in the WebAdministration snap-in or module if available, otherwise uses the IIsProviderSnapIn.

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$useIISProviderSnappin = $False

if ($iisVersion.MajorVersion -eq 7)
{
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                Add-PSSnapIn WebAdministration
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        elseif(Get-PSSnapIn -Registered | Where {$_.Name -eq "IIsProviderSnapIn"})
        {
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            {
                Add-PSSnapIn IIsProviderSnapIn
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            $useIISProviderSnappin = $True
        }
        else 
        {
            throw "Unable to import any suitable modules... :( "
        }
    }
}

Function Get-IISWebsite()
{
    if($useIISProviderSnappin)
    {
        return dir iis:\sites
    }
    else
    {
        return Get-Website
    }
}

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