Werk #19261: Windows agent MSI: Ship signed PowerShell scripts

Component

Checks & agents

Title

Windows agent MSI: Ship signed PowerShell scripts

Date

Oct 16, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p18 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Werk #19211 announced that the Windows agent MSI ships signed PowerShell plugins. However, the PowerShell scripts inside check_mk_agent.msi were not signed. On Windows hosts that only allow signed scripts (execution policy AllSigned), the PowerShell plugins installed with the agent did not run.

All PowerShell scripts inside the MSI are now signed. This includes mk_inventory.ps1 and configure_and_exec.ps1, the wrapper the agent starts every PowerShell plugin with, which were not signed at all before.

To get the signed scripts, update the agent on your Windows hosts.

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