demo.py doesn't work out of the box currently complaining about missing 
win32file module in backends\portalocker.py

This code can be replaced with ctypes calls as shown at 
http://bitbucket.org/pchambon/python-rock-solid-
tools/src/d2cca1ddac53/rsbackends/pywin32_ctypes.py - ready to use MIT 
licensed code.

Closing this. I think this was fixed as part of 1.5.0:

- pywin32 is no longer required to run on Windows (anatoly techtonik)
- Rewritten portalocker.py logic in ctypes for Windows (anatoly techtonik)

Note issue2550827 reports that you still need pywin32 to run roundup
as a service, but the ability to run demo.py and roundup-server manually
is fixed.