Some time ago we recorded an interview with John Eldridge, one of the Windows CE architects to discuss Windows CE real-time capabilities - this is now posted to the Windows CE Tutorials page (look under Intermediate level). Here's a direct link. 

Windows CE, A Real-Time Operating System (Level 200)  NEW!
John Eldridge, an Architect for the Windows CE Core OS team, discusses the Real-Time characteristics of Windows CE 5.0, with Mike Hall. (33:10 minutes)

300K Version | 110K Version 

- Mike