# PowerShell and WMI query
**URL:** https://forums.powershell.org/t/powershell-and-wmi-query/1617
**Category:** PowerShell Help
**Created:** [December 31, 2011, 6:30pm UTC](https://forums.powershell.org/t/powershell-and-wmi-query/1617 "2011-12-31T18:30:00Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@archives](https://forums.powershell.org/u/archives)
#### Post date: [December 31, 2011, 6:30pm UTC](https://forums.powershell.org/t/powershell-and-wmi-query/1617/1 "2011-12-31T18:30:00Z")
by n3rdbiker at 2012-09-14 10:16:06
> I have been very fortunate so far… crossing my fingers that my luck continues.
>
> I would like to be able to use a PowerShell WMI query to determine if a system has a configuration manager client ie. SCCM, SMS installed - if the system does have a client, then I would like to pull the sitecode that the system belongs to.
>
> Any helpful tools for searching WMI would be greatly welcomed as well…
>
> Thanks,
>
> J
by poshoholic at 2012-09-14 10:39:39
> Sure, that’s easy. For SCCM you want to start with the root\sms namespace. Here is what you’ll be looking for:
> `if ($smsProviderLocation = Get-WmiObject -Namespace root\sms -Class SMS_ProviderLocation -Filter 'ProviderForLocalSite=True' -ErrorAction SilentlyContinue) { $smsProviderLocation.SiteCode}`
> That will give you back the sitecode if SCCM is installed on a system.
>
> As for searching WMI, you can interrogate WMI using Get-WmiObject, which is what I do. For example:
>
> Get-WmiObject -Namespace root\sms -List # Look at all classes in the root\sms namespace (or any other namespace)
>
> Once you get a class you want to see more of, you can browse into the properties and methods of that class using PowerShell.
>
> You can also use graphical WMI browsers. There is one written in PowerShell by Marc van Oursow called WMI Explorer. That’s only one of many however.
by n3rdbiker at 2012-09-14 12:03:08
> Posh I apprecaite the tip but have ran into a snag. I’m not finding the root/sms namespace on my system. I know the SCCM client is on the system, but the namespace doesn’t appear to be there. Any idea what I am missing?
by poshoholic at 2012-09-14 12:29:00
> Whoops, my mistake. I went for the SCCM server namespace, not the SCCM client namespace. SCCM has both server and client interface extensions for WMI.
>
> My SCCM lab is offline (I need to bring it back into my new Hyper-V install post HD crash/replace), so I’m going on memory here, but I think you need to do something like this:
>
> `#region Test if the client is installed by checking for the root\ccm namespace and the SMS_Client class.$ccmNamespace = Get-WmiObject -Namespace root -Class __NAMESPACE -Filter 'name="ccm"'if (-not $ccmNamespace) { Write-Error 'Client is not installed.' return}$smsClient = Get-WmiObject -Namespace root\ccm -Class SMS_Client -ErrorAction SilentlyContinueif (-not $smsClient) { Write-Error 'Client is not installed.' return}#endregion#region Now get the assigned site name for the client.$smsClient.GetAssignedSite()#endregion`
>
> Give that a try and see if that gives you what you’re looking for.
by n3rdbiker at 2012-09-14 12:50:01
> Very close POSH
> now getting an error that the method doesn’t exist.
> Method Invocation Failed… [System.Management.ManagementObject#ROOT\ccm\SMS\_Client] does not contain a method ‘GetAssignedSite’
>
> Thanks again for all of your help,
>
> j
by poshoholic at 2012-09-14 12:56:19
> Very close is good. 🙂
>
> What about a property, AssignedSite, like this:
> `$smsClient.AssignedSite`
> You should be able to see all property values by invoking this:
> `$smsClient | Format-List *`
> and all properties and methods (not values) by invoking this:
> `$smsClient | Get-Member`
by n3rdbiker at 2012-09-14 13:03:26
> no sir, neither there is a "site" property but it has no value.
> I did fine an example using that method on the "google machine" they were calling a COM object of the SCCM client and then running the method… a little too deep for me.
>
> I found that root/ccm sms\_authority has a name property which is the site code - using a little bit of regex magic I was able to trim off the SMS: and return only the site code. I wouldn’t have gotten there if it weren’t for your help. Thank you very much.
by poshoholic at 2012-09-14 13:14:30
> Excellent, I’m glad you found a way to work it out. My past approach was more server focused, which it seems is more straightforward. There is a ton of information in the WMI provider for SCCM…it’s just not always easy to find it. 🙂
by Makovec at 2012-10-11 07:58:52
> Back to using of COM. I used it in the past, if you want to return just SiteCode, you can use following piece of code:
> `(New-Object -com Microsoft.SMS.Client).GetAssignedSite()`
by Makovec at 2012-11-20 02:57:14
> Hi,
>
> Can you specify what’s not working and what error message you received?
>
> Thanks,
> David
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### Author:  [@dotnVo](https://forums.powershell.org/u/dotnVo)
#### Post date: [May 16, 2024, 9:03pm UTC](https://forums.powershell.org/t/powershell-and-wmi-query/1617/2 "2024-05-16T21:03:46Z")