What's the WMI class name to get Client Approval status

Question

What's the WMI class name to get Client Approval status.
Unfortunately the below example with class "SMS_R_System" does not have the approval status
Get-WmiObject -Namespace "root\sms\site_LAB" -Class SMS_R_System | fl *
I listed all the available classes and... yeah It's going to take along time to go though all the possibilities.
Note: I'm running this in powershell on the primary first
If anyone knows it... I'd appreciate your help

Answer 1

This is all still in the testing phase so I'm not sure this is the best solution... but here's my problem and idea to resolve it.
Currently in our environment OSD can only be run against unknown computers and approved clients.
I currently automatically approve all clients in a trusted domain. So all systems that succeed OSD and auto join the domain are approved and I can always run OSD against those machines in the future.
Problem is with the systems that fail OSD for any reason and therefore do not automatically join the domain. They end up getting a SCCM record by the name of "Unknown" and therefore cannot run OSD again until the "Unknown" record
is deleted. "Unknown" records happen too frequently to manually delete and I'm not too comfortable with just deleting ALL of them on a scheduled basis.
Additionally there are way too many OU's in my environment to automatically join our OSD'd systems to the domain. So I have a script that checks using a prestart command to see if the system is already in AD, and if so then OSD continues and simply
joins the machine to the domain in it's current OU. If not the tech is given a nasty error message telling them to add the computer object in AD in the proper OU first.
I intend to check , with a Prestart Command if the current system already has a record in SCCM and delete it if found AND is not approved yet. This should resolve the "There are no task sequences available" error I get with
systems that have an "Unknown" SCCM record.
In this way the system will be essentially approved if the system was already prestaged in AD manually by a technician and any "unknown" record for that system will simply be deleted at the point of OSD.
Note: Although I can easily use the new SCCM Powershell cmdlettts and get the "Approved" status, I need to do all of this in WinPE without the cmdletts. If this property is not available via WMI, then I'm guessing this will not work.