Weird behaviour POWERSHELL script data returned to PRTG

Hello,

I'm testing a simple Powershell script, and the behaviour is rather stranger.

My script is:

$pathcounter = (Get-ChildItem -Path C:\Windows).count
Write-Host $pathcounter
 
#returning PRTG XML data
"<prtg>"
        "<result>"
        "<channel>Nombre d'ojets dans C:\Windows </channel>"
        "<value>$pathcounter</value>"
        "</result>"
"</prtg>"

This script return the right value in PRTG.

If I change the first line with

$pathcounter = (Get-ChildItem -Path \\MYSERVER\C$\Windows).count

the value returns 0 to PRTG, although the $pathcounter is correctly set and match the content of C:\Windows on MYSERVER.

If I execute the script in a Powershell editor the <value>xxx</value> is set correctly and match the content of the $pathcounter variable.

What is the reason the script return 0 to PRTG ?

Thanks for the answer.

powershell prtg script