Environment: Python 2.4, Windows 2000 Professional,
windows command prompt.

Python is using a join(), waiting for threads to
finish, when a KeyboardInterrupt occurs.  (A
KeyboardInterrupt handler is defined for the main thread.) 

The handler appears to work as expected, but control is
never returned to Windows, leaving the console window
unusable.

Directions to reproduce bug:
1) run the attached program from a console prompt like:
c:\mydir> threadingSample.py
2) when the program suggests, hit <Ctrl-C>