I've heard that GOG games installed on Vista have 512X512 icons included in their directories. Is this true? And if so, why doesn't XP get them, I would like to use them in ObjectDock, which I use to launch my most used programs.

not true for fallout
EDIT:
it is true actually, it's included so that when the game is installed it shows up under 'games' in the start menu. I do believe they should include it.

All their games include the icon in an .ico file in the game directory.
e.g. 'C:\Program Files\GOG.com\Fallout\gfw_high.ico'
I don't know what object dock uses, but I think I read somewhere that it uses PNG. There are websites that do PNG->ICO and ICO->PNG conversions.
I've made a few GOG-like icons for other games and posted them in this thread (in PNG format), in case it's of interest.
[url=]
http://www.gog.com/en/forum/general/gog_com_like_vista_icons/1[/url]

Are you sure these are not Vista only? Because the only icons I have for Descent 1,2,3 ; Fallout, and Earthworm Jim 1 and 2 is the standard 48x48 or smaller icons. Oh, and Objectdock can use both .ICO and .PNG files.

Yes, I'm certain, I have both windows xp and vista at home, and like bpops says it's 'C:Program FilesGOG.comFalloutgfw_high.ico' sorta.
I was unable to open that file in windows xp, but that could have just been because the CD i burnt was all oily. really just need to get down filesharin on the network instead.
anyway, they are vista only.