Message: The data upgrade process has begun: to build ... from ...
Explanation: The Foxhound post-setup process has begun to copy and upgrade the data stored in a previous version of the Foxhound database.
More information may be found in this file on Windows XP:
C:\Documents and Settings\All Users\Application Data\RisingRoad\Foxhound3\setup\post_setup_trace.txt
and on Vista or Windows 7:
How do I install a new version of Foxhound?