Category Archives: PowerShell and CIM

Logon sessions

Saw a question about logon sessions that had me looking at CIM class Win32_LogonSession. I really don’t like the example code they have – code shouldn’t posted that contains aliases especially the abominable use of ? for Where-Object (pet PowerShell … Continue reading

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Windows Server 2019 updates with CIM

Windows Server 2019 updates with CIM remain the same as all server versions post Windows Server 2016. This code will check for and install any updates. Micorosft Update or WSUS will be used depending on how your system is configured … Continue reading

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CIM_Component class

I saw a question about the CIM_Component class and wondered what it was. So I tried it PS> Get-CimInstance -Namespace root\CIMV2 -ClassName CIM_Component | select -f 1 | fl * GroupComponent        : Win32_Directory (Name = “<directory path>”) PartComponent         : CIM_DataFile … Continue reading

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File searches with WMI

I saw a question about file searches with WMI. If you just know the file name it’s a very slow process. Painfully slow. If you have an idea about the folder its much quicker. function get-wmifile { [CmdletBinding()] param (   … Continue reading

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user logon time

Saw an interesting question about user logon time. How can you tell the logged on user and when they logged on $logon = Get-CimInstance -ClassName Win32_LogonSession | sort StartTime -Descending | select -First 1 $user = Get-CimAssociatedInstance -InputObject $logon -ResultClassName … Continue reading

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WMI and CIM accelerators

In PowerShell an accelerator is a shortcut to a .NET type. The WMI accelerators have been around since PowerShell v1. The WMI accelerators were heavily used in v1 fill some of the gaps in cmdlet coverage. The CIM accelerators appeared … Continue reading

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CIM references and associations

Way back in 2011, when I were just a young lad, I wrote about WMI or CIM references and associations – https://wordpress.com/read/blogs/16267735/posts/1673 ASSOCIATORS show the end point of the link between CIM classes and REFERENCES shows the linking class. I … Continue reading

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