I have a Windows application which will run in Windows XP and newer (i.e. Vista/7). According to the Vista UI Guidelines, the standard sizes are 16×16, 32×32, 48×48, 256×256 (XP standard sizes do not include the 256×256 icon). In addition to those sizes, I also have 96×96 and 128×128 (and could create more).
Which of these icon sizes should I include? Will the shell actually use the “non-standard” sizes, or will I simply bloat my application?