SCOM 2007 R2 How to unseal a management pack

There're lots of situations when you need to view the source code of discoveries/overrides/rules/monitors to troubleshoot your SCOM related issues in your production. Or maybe to change some parameters that are not overridable by default.

You can run the following powershell script to get the XML output of a sealed MP:

param($mpPath,$outputPath)
$assembly = [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.EnterpriseManagement.OperationsManager")
$mp = new-object Microsoft.EnterpriseManagement.Configuration.ManagementPack($mpPath)
$mpWriter = new-object Microsoft.EnterpriseManagement.Configuration.IO.ManagementPackXmlWriter($outputPath)
$mpWriter.WriteManagementPack($mp)

You can "hardcode" the values in the script, but better, you should save this script to file(convert.ps1) and the example of execution:

c:\convert.ps1 -mppath 'c:\sealed.mp' -outputpath 'c:\'