Vista - Re: PNG Formats in Vista

The resulting dialog dimensions from WinVer on my lab XP and lab Vista
were different (both using Classic theme), and if the below was
followed, it would be two different sized images compared, which would
not have proven a compression test. I took a sample BMP from a third
computer, and used MSPaint on both the XP and Vista lab boxes to
convert to PNG. The resulting image's sizes were identical.
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Zack Whittaker (R2 Mentor) wrote:

> Try this, see if this works.
>
> On Windows XP (with Classic theme):
> 1) Type in at Run, "winver" then press OK.
> 2) Press Alt+Printscreen when About Windows is active.
> 3) Open in Paint, and set the canvas size as 2x2.
> 4) Paste in the screenshot of just the Winver box.
> 5) Save as a PNG format on your desktop.
>
> On Windows Vista (with Classic theme):
> 1) Type in at Run, "winver" then press OK.
> 2) Press Alt+Printscreen when About Windows is active.
> 3) Open in Paint, and set the canvas size as 2x2.
> 4) Paste in the screenshot of just the Winver box.
> 5) Save as a PNG format on your desktop.
>
> Now compare the file sizes... which is bigger and which is smaller? I
> did this on my two machines, and it seems that the PNG compression
> isn't quite what it should be, because I've got two files exactly the
> same (both on Classic themed view) and there was a huge difference,
> about 100kb between the two. Can anyone else repro this?
>
> Thanks )