The notify Icon should be 16x16 in size, or atleast those are the ones I
use. I use Axialis Icon Workshop to create my icons. I like it much better
than Microangelo.
<msnd>
To avoid icon distortion, be aware that notification area icons have
different levels of support under different versions of Microsoft®
Windows®. Windows 95, Windows 98, and Microsoft Windows NT® 4.0 support
icons of up to 4 bits per pixel (BPP). Windows Millennium Edition
(Windows Me) and Windows 2000 support icons of a color depth up to the
current display mode. Windows XP supports icons of up to 32 BPP.
</msdn>
If you are using VS.NET, you can use its icon editor to create the
icons.