Running on Bad Memory

Being able to rely on your memory is one of the most important aspects of having a stable PC. Thus, paying extra for premium memory seemed like a wise choice to me.

Yet I have been surprisingly unlucky with my memory.

In this post I’ll show how to identify broken memory cells and how to prevent Windows and Linux from accessing them, resulting in a stable system while discarding only a few Kilobytes of memory.

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Whenever I needed a screenshot of some application for this website, I used an image editor to cut out the window’s drop shadow, generated an alpha channel from its luminance, added that as a layer behind the actual application window and saved the entire thing again.

Today I wrote a small utility to automate this process for me: AeroCapture. Pressing the “Print Screen” key will take a screenshot of the active window, and save it as a .png in the My Pictures directory, retaining the window’s drop shadow in the image’s alpha channel.

Screen capture of a small window showing a clip art of a digital camera

You can download it here: [rokdownload menuitem=”17″ downloaditem=”42″ direct_download=”true”]AeroCapture.7z[/rokdownload] (C# source code included)

This got me thinking. Somehow, whenever I have the choice between…

  • spending 2 minutes doing a repetitive task that I’ve done a few dozen times before already (like fixing up the screenshot for my website)
  • or spending 4 hours to automate the task

…I always choose the 2 minutes approach. I can continue working on what I was planning to do and I don’t have as many utilities to maintain.

What do you do in this situation?