Category Archives: Windows

Recovering NTFS inheritance

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A little time ago, my (admin) user in Windows 10 was so badly damaged, that I had to re-create it. While that was easily done, I found that the NTFS rights on my D: drive were a bit odd: Every folder had inherited an ACL right from D:\ for my… Read more »

Managing Windows features using RSAT

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One of the more useful Windows features for Windows administrators is the Remote Server Administration Tools pack (RSAT). Apart from allowing you to install GUI elements in the Administrative Tools menu, this can also install the command-line tools for querying and managing Active Directory: dsquery.exe, dsadd.exe, dsget.exe, dsmod.exe, dsmove.exe and… Read more »

Powershell: Get an indented process tree

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Process Tree

In PowerShell, there is the Get-Process cmdlet. However, this does not return the ParentProcessId property, so it is unsuitable for displaying an indented process tree, which you, for instance, could send by email. Luckily, there is the Get-WMIObject cmdlet that can return the ParentProcessId. How to get a Process Tree… Read more »

Reading the Windows Registry from PowerShell

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Reading the Windows registry from PowerShell can be a bit cumbersome, when all you wanted to retrieve is the value of an item under a key, at least with PowerShell version before v5. The Get-ItemProperty can be used to enumerate the items and their values under a registry key, but… Read more »

HP Universal Printer PCL 6 driver cannot read printer capabilities

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printer pcl 6 driver

This bug I encountered last week. While writing a system to define printers and TCP/IP ports in bulk on Windows 2008 R2 servers, I got the report from the testers that a color printer defined with the HP Universal Printer PCL 6 driver wasn’t recognized as color when the port… Read more »

Managing Windows features from the command line with RSAT

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RSAT

Note: An update of this article for Windows 10 can be found here One of the more useful Windows features for Windows administrators is the Remote Server Administration Tools pack (RSAT). Apart from allowing you to install GUI elements in the Administrative Tools menu, this can also install the command-line… Read more »

Weird error on Windows 7 with RUNAS.EXE with locally defined user

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The other day, I noticed something strange with Windows 7’s runas.exe command. When I specify a local user, a local administrator for instance, I normally use the “period-notation”, like: .UserName However, RUNAS.EXE threw an error at me: “RUNAS ERROR: Unable to acquire user password”. Luckily, this was easily solved. I… Read more »

Merging videos with mencoder

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merging videos

In this article, I present an easy way to merge all video files in a directory using the Open Source tool mencoder (part of mplayer, the video player) using a batch file, suitable for Windows XP and later. The method below supports merging AVI, MPG, MP4, WMV and RM files.

CMD.EXE: About Variables

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In this article I will give some extra information on the usage of CMD.EXE variables in batch files. These variables are stored in the so-called Environment, hence the name Environment Variables. There are two environments on a Windows machine: The System and the User environment. When a variable is set… Read more »