When copying an installation of the latest autobuild (#171 (Mar 28, 2013 11:23:58 PM)), I got a "Destination path too long" error for a Pathfinder file, saying "The file name(s) would be too long for the destination folder. You can shorted the file name and try again, or try a location that has a shorter path."
The file is curse_of_the_crimson_throne_players_guide_pfrpg
The full path would have been
(I made it a little longer by make is a " - Copy", but it seems to be pushing the limits and may cause problems for other people.)
Windows Vista Home Premium SP2 64 bit
Completed: At revision: 19938