Resident Evil 2 on DC is a prime example of what the WCE does. It's basically an emulation of CE. Made just for DC. Yet, like BV stated, it was made for the Web Browser purposes. Yet had the ability to port over almost any PC game at that time.
Like Resident Evil 2 is a direct Windows 98 port, Quake III, Unreal Tournament.
Also explains why many homebrews have been able to make emulation disc to play NES, SNES games even. the Windows CE interface helps alot.