PowerShell: PowerEvents Module Update to 0.3 Alpha

If you haven’t already checked it out, I wrote and published a PowerShell module on CodePlex a little over a year ago. It’s called PowerEvents for Windows PowerShell, and allows you to easily work with permanent WMI (Windows Management Instrumentation) event subscriptions. Some folks may not be aware that I’ve also written comprehensive documentation on … Read morePowerShell: PowerEvents Module Update to 0.3 Alpha

PowerShell / ConfigMgr 2012: Check Client Reboot Pending State


If you’ve worked with Configuration Manager 2007 for very long, you probably know that clients pending reboots can cause you quite a headache. Determining whether or not a client needs a reboot can be a challenging task, and most folks used desired configuration management rules to detect it.

Well, I’m happy to announce that there’s a new method of figuring out whether or not a SCCM client requires a reboot! There’s a new WMI namespace called rootccmClientSDK, and within it is a WMI class called CCM_ClientUtilities, which has a static method called DetermineIfRebootPending() – the method does not take any input parameters, however it spits out several [out] parameters when it is called.

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ConfigMgr 2012: Deleting Advertisements

Where’d my Advertisements Go?

Advertisements aren’t quite what you think they are. At least, that’s probably the case if you’re talking in context of Microsoft System Center Configuration Manager (SCCM / ConfigMgr). At first glance you might see “deleting advertisements” and exclaim: “YES! Please do!” The difference here is that advertisements in SCCM are not product or service advertisements, but rather proclamations of the availability of software to a computer system. If you’re reading this, you most likely already knew that, but if not, then … now you do.

Back in the days of the SCCM 2007 console, there was a single Software Distribution –> Advertisements node which contained advertisements for both standard software distribution and operating system deployment (OSD) task sequences. This worked pretty well, but it was a little confusing since the operating system deployment node was entirely separate from software distribution. Hierarchically, it just didn’t make sense.


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Removing Permanent WMI Event Registrations

Introduction Since I’ve worked on the PowerEvents PowerShell module, several folks have been confused about how to remove event registrations once they’ve been created. I wrote some documentation that’s included in the download, that explains how to manually remove these registrations using the built-in wbemtest tool. This is the fool-proof method, since wbemtest is included … Read moreRemoving Permanent WMI Event Registrations

PowerShell: PowerEvents Module

Hey guys, I haven’t written anything new in a while, because I’ve been working on a PowerShell module called PowerEvents. PowerEvents is a module that facilitates working with WMI (Windows Management Instrumentation) permanent event registrations. You can query for and respond to events, all from within WMI! PowerEvents simply makes creating those registrations easier. For … Read morePowerShell: PowerEvents Module

PowerShell: ConfigMgr WMI Provider (feat. Lazy Properties)

What are Lazy Properties? So if you’re a script writer, and you also use System Center Configuration Manager 2007 (ConfigMgr), you may have run into a concept called Lazy Properties. Lazy properties are certain (not all) properties on certain (not all) WMI classes, within the ConfigMgr provider namespace, that are marked with a WMI qualifier … Read morePowerShell: ConfigMgr WMI Provider (feat. Lazy Properties)

PowerShell Module: Enable Wake for Devices

So in my last post, I shared a PowerShell script that enables you to enable devices to wake up computers. This script relies solely on a WMI interface, but despite the remote nature of WMI, I had provided no method of entering a remote computer name. That changes with the release of my first ever … Read morePowerShell Module: Enable Wake for Devices

PowerShell: Finding Currently Loaded DLLs

I was just browsing through the root\cimv2 WMI namespace this morning, using SAPIEN’s free WMI Explorer tool, when I happened across a WMI class called CIM_ProcessExecutable. In fact, what I was doing in a bit more detail, was going through the CIM_* classes, with the Instances tab selected, so I could discover if any of … Read morePowerShell: Finding Currently Loaded DLLs

Exporting ConfigMgr Task Sequences

This article will briefly discuss how to export a ConfigMgr OSD task sequence. The SMS_TaskSequencePackage class has a lazy property named Sequence which contains the XML for the task sequence. Because this is a lazy property, we must obtain a reference to each WMI instance using its direct path, before we can open the property’s … Read moreExporting ConfigMgr Task Sequences

PowerShell: Getting started with WMI Events

Introduction PowerShell version 1 provided good integration with WMI using the Get-WmiObject cmdlet, allowing you to easily retrieve and modify WMI instances, and call WMI methods, but PowerShell v2 has taken it, and many other things, a lot farther. One of those areas is eventing, and not just WMI eventing, but responding to WMI events … Read morePowerShell: Getting started with WMI Events