Vista Tutorial - WMI and IIS 7

I have been investigating using PowerShell to administer IIS 7. Using the
Microsoft.Web.Administration namespace I have sucessfully created and deleted
sites, applications and applicationpools - see recent posts on my blog for
details.

This code also works very nicely through the remoting features of PowerShell
V2. Hurrah we're 2 for 2

Now comes the problem - IIS 7 also exposes a WMI provider

I have managed to do a certain amount through WMI and PowerShell

$site = Get-WmiObject -Namespace "root\webadministration" -Class Site
-Filter "Name = 'WTest1'"

$site | Set-WmiInstance -Argument @{ServerAutoStart = "False"}

$site.Stop()
$site.Start()

$site.psbase.Delete()

Such as changing properties of the site stoppping & starting & deleting
sites. The one point where I have hit a wall is creating a site using WMI.
I have found a reference to doing it with VBScript

http://www.iis.net/articles/view.asp...s-WMI-Provider

but I cannot duplicate this in PowerShell. I am open to suggestions (within
resaon ;-) ) and would be extremely grateful if someone can point out what I
am missing

--
Richard Siddaway
Please note that all scripts are supplied "as is" and with no warranty
Blog: http://richardsiddaway.spaces.live.com/
PowerShell User Group: http://www.get-psuguk.org.uk

RichS wrote:Any particular reason you *must* do this with WMI? Using the v2
remoting, you could just use appcmd.exe.

I am trying it out though. No luck so far either here, but I've thought
of a few things since last night, but I've not time to try them until
tomorrow evening or so.

--
Microsoft MVP - Windows PowerShell
http://www.microsoft.com/mvp

PowerGadgets MVP
http://www.powergadgets.com/mvp

Blog:
http://marcoshaw.blogspot.com

Theres no *must* about it

I've already posted to my blog about using V2 remoting and the .NET
Microsoft.Web.Administration namespace. Using appcmd via PowerShell remoting
seems a backward step.

I wanted to investigate the WMI provider for IIS 7 to see if it was any
easier or gave any advantages - current conclusion is the .NET method is
easier to understand and get working
--
Richard Siddaway
Please note that all scripts are supplied "as is" and with no warranty
Blog: http://richardsiddaway.spaces.live.com/
PowerShell User Group: http://www.get-psuguk.org.uk


"Marco Shaw [MVP]" wrote:

RichS,
I did a demo at DotNetNuke OpenForce on using PowerShell to automate installing
DotNetNuke. As part of that demo, I had a function that creates a webapp
and adds it to the appropriate app pool.

function new-webapplication (
$AppPath,
$Directory,
$AppPool = "DotNetNuke",
$SiteName = "Default Web Site",
$Computer = ".",
[switch]$passthru ) {

$MC = [WmiClass]"\\$Computer\ROOT\WebAdministration:Application"

# We need to ensure the AppPath starts with a / otherwise we will get an
error
if ( -not $AppPath.StartsWith("/") ) { $AppPath = "/$AppPath" }

$mc.Create($AppPath, $SiteName, $Directory)

#Now we need to add the application to an application pool
$appquery = '\\$Computer\Root\WebAdministration:Application.Path="$AppPath",SiteName="$SiteName"'
$appinstance = [wmi]$ExecutionContext.InvokeCommand.ExpandString($appquery)
$appinstance.ApplicationPool = $AppPool
$appinstance = $appinstance.Put()

if ($passthru) { $appinstance }
}

In my testing and development, I found that the errors returned are very
obtuse and hard to understand. The biggest culprit - failing to run the
script with the proper permissions. Also note that I have not tested the
script against a remote server which would require dealing with permissions,
an area of WMI that I don't have experience with. I will say that this was
my first dealing with WMI in PowerShell and it took me a long time to figure
this out. Personally, I found WmiExplorer to be a good starting point, but
there are so many parts of IIS7 that are very unintiuitive. If I could have
found the documentation on doing this with .Net classes, I would have used
them in a heartbeat. I am not sure if it will matter, but I only tested
this on IIS7 in Vista. I don't know if there are any differences with Win2008

One of the problems I had with the WMI implementation for IIS7 is that it
is different than the WMI classes for IIS6. To me, that would have been
the biggest benefit to WMI, using one script that would work with both IIS6
and IIS7.

HTH

Joe Brinkman
----------------------------------------------------------
DotNetNuke Corp. ASP.Net MVP
www.dotnetnuke.com
----------------------------------------------------------

Joe

Thanks for the script. I was trying the WMI stuff locally on a Win 2008 box
as member of everything so permissions shouldn't have been an issue.

I've got the code to create an application using .NET instead of WMI and I
must admit that the .NET solution seems much easier. Did you try creating a
site with WMI at all?

Thanks
--
Richard Siddaway
Please note that all scripts are supplied "as is" and with no warranty
Blog: http://richardsiddaway.spaces.live.com/
PowerShell User Group: http://www.get-psuguk.org.uk


"Joe Brinkman" wrote:

Using WMI Explorer from MOW I have dug into site creation a bit more.
Everything works EXCEPT I can't create the bindings for the site ie protocol,
ip addresses, ports etc

Once I work that bit out its a winner


--
Richard Siddaway
Please note that all scripts are supplied "as is" and with no warranty
Blog: http://richardsiddaway.spaces.live.com/
PowerShell User Group: http://www.get-psuguk.org.uk


"RichS" wrote:

RichS wrote:Well, actually, this would likely be a good way to do it remotely with
Server Core, so it is definitely a good exercise.

Marco

Rich,
I did not have a need to create sites, since for DotNetNuke we are used
to just creating applications under a previously existing site (a carryover
from our WinXP dev days). Like you I found it extremely difficult to figure
out how to manage different aspects of IIS7 with WMI, so I stuck with what
I needed for my demo, and left it at that. Definitely not for the faint
of heart.

Joe Brinkman
----------------------------------------------------------
DotNetNuke Corp. ASP.Net MVP
www.dotnetnuke.com
----------------------------------------------------------

Remember that IIS on server core is limited as can't use asp.net - no .NET
framework
--
Richard Siddaway
Please note that all scripts are supplied "as is" and with no warranty
Blog: http://richardsiddaway.spaces.live.com/
PowerShell User Group: http://www.get-psuguk.org.uk


"Marco Shaw [MVP]" wrote:

I had a comment posted on my blog with the answer - see

http://richardsiddaway.spaces.live.c...3E96!995.entry

--
Richard Siddaway
Please note that all scripts are supplied "as is" and with no warranty
Blog: http://richardsiddaway.spaces.live.com/
PowerShell User Group: http://www.get-psuguk.org.uk


"RichS" wrote: