Get-WmiObject -Class Win32_Product - showing wrong version of program

Question

Get-WmiObject -Class Win32_Product  | where-object { $_.name -like "*OfficeScan*" }

Shows me the wrong version number of the TrendMicro OfficeScan Client - the default Version 12.0.1222 when the installed version is 12.0.4430.

I also tried:

Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* |  Select-Object DisplayName, DisplayVersion, Publisher, InstallDate

There it doesnt show up at all. It's weird because in the old systemcontrol if i go to deinstallation it shows the correct version:

So I need to somehow extract the information of the actual version to my powershell. I need it for a auto update feature, it has to be using powershell.

henrycarteruk · Accepted Answer · 2018-02-08 10:14:11Z

2

Assuming you're using a 64bit system, you're looking in the wrong place in the registry.

I don't have TrendMicro, so using Adobe Reader as an example:

Get-ItemProperty HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\* |
    Where-Object { $_.DisplayName -like "*Adobe Reader*" } |
    Select-Object DisplayName, DisplayVersion

If you just want a numerical Version property to use as a comparison, update:

Select-Object -Expand DisplayVersion

answered Feb 8, 2018 at 10:14

henrycarteruk

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2 Comments

Darude Sandstorm Over a year ago

It worked thank you, can you explain to me what the difference is? Between HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\ and HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\

henrycarteruk Over a year ago

Check the link in my answer as it explains that :)

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