CommandLine property is empty when user has insufficient privileges

Steps to reproduce

Install Oracle XE 11g

 (ps -Name TNSLSNR).CommandLine

Expected behavior

C:\oraclexe\app\oracle\product\11.2.0\server\bin\tnslsnr.exe

Actual behavior

No output

Environment data

Name                           Value
----                           -----
PSVersion                      7.1.0
PSEdition                      Core
GitCommitId                    7.1.0
OS                             Microsoft Windows 10.0.19041
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

[jborean93]

Task manager is a special process where it’s run as elevated by default without having to prompt through UAC. It’s signed by a specific Microsoft cert which allows it to do so and that’s why it can see the command line. So you need to be running as admin and the only action I can reliably see here is for the docs to be updated to state that is the case. As @SeeminglyScience says, changing the behaviour now could break existing scripts so not really something that could be done.

[SeeminglyScience]

Only when thrown by the method that obtains a value from a property. Note that I’m not necessarily saying it was or wasn’t a good idea, but changing it now would break a lot of folks.