I know the tip is a sloppy one. It was probably a bad choice of example on my part. The exact bug you point out is a severe one, and can happen on a wide variety of platforms, even single-process ones. I do not think that really affects my argument though. The issue for me is not the quality of one particular tip, it is the nature of the criticism leveled at it. No one posted a response to the tip explaining its bug(s), or why it does not work well in a multiprocessing environment. The response was (paraphrasing) "this is garbage because it doesn't have command line arguments." And I am sure an equal number of people looked at the tip and asked "where's the GUI?" In my original post I wanted to use someone else's tip, to make my point more objective. But perhaps one of my own tips[^] is a better example. In the tip, I provided a signature-compatible GDI+ replacement for GDI's StretchBlt() function, which adds anti-aliasing. There are a variety of potential issues with what I posted: it is not particularly fast, a full rewrite might be better than simply dropping in a replacement function, etc. I expected criticism on these points. However, the nature of the actual criticism I got was a bit unexpected. Someone posted a response with the subject line "Just use Bitblt of GDI in WM_PAINT, resize at other." In other words, the suggestion is to draw the image at its native resolution in WM_PAINT and then resize it using other (unspecified) means. You can read my response to this post at the tip itself, but in short I do not see where WM_PAINT necessarily enters the discussion... this is a classic example of the anti-pattern I pointed out. Of course, relying on some other unspecified magic to do the actual work of resizing the image (the whole point of StretchBlt()) is not valid, either. To summarize: when I post code, I am not necessarily suggesting an architecture. In criticizing my code, be brutal; point out bugs, potential optimizations, etc. But please do not place my code into some assumed architectural context without a valid reason.