It looks like there is a hidden easter egg in the Micrsoft ActiveSync program.
If you have this program installed on your computer in the default locations, the following should display the easter egg for you:
res://c:\program%20files\microsoft%20activesync\wcesmgr.exe/userdata.gif
Just copy and paste it in a fairly recent version of Micrsoft Internet Explorer.
So far I like the one for Solitaire better...