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Running a powershell script as a kscript isn't working

I have a powershell script that is supposed to harvest the Bitlocker key of a computer, then use that key to force the computer to backup the key to Active Directory. It works when I run it as an administrator by itself. However, when putting it into Kace it doesn't perform as expected.

The script looks like this:
$result = manage-bde -protectors -get c: -type recoverypassword
$id = $result -match "ID" | Out-String
$id = $id.Substring(10)
$revid = $id -replace "`t|`n|`r",""
$finalid = "$revid"
manage-bde -protectors -adbackup c: -id $finalid

Per the documentation I found here, I set up a kscript to run a batch file that calls the powershell script. I have the batch script running the following command:

powershell.exe -ExecutionPolicy Bypass -File "C:\ProgramData\Dell\KACE\kbots_cache\packages\kbots\127\bitlockerBackup.ps1"

The execution policy on the computer is actually set to unrestricted, so that shouldn't be an issue anyway. Any ideas on why this isn't working?


EDIT: I've updated the code to show my latest iteration, wherein I'm only calling the Powershell program once in the batch file. It still doesn't resolve the problem.


3 Comments   [ + ] Show comments
  • Hi pbrandvold, is there a reason for the double powershell.exe command in the begining? - jboling 6 years ago
    • The official documentation has it twice. However, I've tried with just calling powershell once and it doesn't help either. - pbrandvold 6 years ago
  • Just call it once - jgarcia29 6 years ago
  • Did you ever figure this out? - momalle1 5 years ago
    • Unfortunately no, but honestly I didn't try any of the solutions in the comments - shortly after posting this I ended up creating a script to remote into computers using powershell and run this script through that instead. - pbrandvold 5 years ago
      • Thank you. I have tried them to no avail :(. - momalle1 5 years ago

Answers (2)

Posted by: JasonEgg 6 years ago
Red Belt
2
That article is odd, I don't know why they hard-code the script dir. I would use "Launch a program"  with these settings:
Directory: $(KACE_SYS_DIR)\WindowsPowerShell\v1.0
File: powershell.exe
Parameters: -nologo -executionpolicy bypass -WindowStyle hidden -file $(KACE_DEPENDENCY_DIR)\bitlockerBackup.ps1
Posted by: HISDTechGuy 6 years ago
Senior Yellow Belt
1
Is this for x64 machines? if so try to specify the 64 bit powershell using %SystemRoot%\sysnative\WindowsPowerShell\v1.0\powershell.exe

if the KACE agent is running in 32 bit it will run the 32 bit powershell, which has issues dealing with the OS

Comments:
  • Argh! I learned about sysnative over a year ago, but forgot about it because I hadn't put up any other ps scripts. This just fixed my problem with a new script. - tpr 2 years ago
 
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