I have decided to update my WinHTTrack to the 3.43 version.  When I look at the
download page I find four possible downloads for WindowsXP.  Can someone
direct me to a page that describes the differences between them?
WinHTTrack : Windows 95/98/NT/2K/XP
(also included: command line version)

httrack-3.43.exe
or
httrack-3.43.exe (mirror)

WinHTTrack : Windows 95/98/NT/2K/XP
WITHOUT installer

httrack-noinst-3.43.zip
or
httrack-noinst-3.43.zip (mirror)