Microsoft has implemented new thread pooling functions in Windows 2000 to make thread creation, destruction, and general management easier. Though not perfect for every situation, in many cases these new functions can save you hours of development time.
Jeffrey Richter

Design a Single Unicode App that Runs on both Windows 98 and Windows 2000

Windows 2000 is expected to have the best international support of any Windows OS to date. We'll address real-world issues such as how to design your Unicode-based app to run as a single executable on both Windows 9x and Windows 2000.
F. Avery Bishop

This third and final installment on ActiveX controls examines the steps necessary to host these controls using ATL 3.0. You'll learn how to host controls both in standalone applications as well as from within COM servers.
Brent Rector and Chris Sells