I emailed this to Xavier, but am posting here as well:

I have what I believe to be a bug in RC7. Using WinHTTrack 
I created a project that imports a URL list from a file. 
Using WinHTTrack, the site rips perfectly as expected. 
However, running httrack on the command line from the 
project directory always yields the following error 
(contents of the hts-log.txt file):

HTTrack3.20RC7 launched on Thu, 08 Aug 2002 14:13:42 at -
*.asp* -*/amdhome/OV_omegaoverview.htm -
*/ExecutiveServices/Procedures.htm -*/144Stock/*

(httrack -qwC2t%P0s0b0u1j0%B%s -N rippedsite/%h%p/%n%q.%t -
I0%I0p7BaK0R6H0f2#f -F "Mozilla/4.5 (compatible; HTTrack 
3.0x; Windows 98)" -%F "" -%l "en, *" -%
L "D:\WebDocs\PAGDocs\Utils\spider.txt" -
O "D:\MyWebSites\PAG","D:\MyWebSites\PAG" -*.asp* -
*/amdhome/OV_omegaoverview.htm -
*/ExecutiveServices/Procedures.htm -*/144Stock/* -%A 
php3,php,php2,asp,jsp,pl,cfm=text/html -%A 
pdf=application/x-pdf -%A doc=application/msword -iC2 )

Information, Warnings and Errors reported for this mirror:

note:	the hts-log.txt file, and hts-cache folder, may 
contain sensitive information,
	such as username/password authentication for 
websites mirrored in this project
	do not share these files/folders if you want these 
information to remain private

14:13:42	Error: 	Could not include URL 
list: "D:\WebDocs\PAGDocs\Utils\spider.txt"
14:13:42	Info: 	No data seems to have been 
transfered during this session! : restoring previous one!


The file D:\WebDocs\PAGDocs\Utils\spider.txt absolutely 
exists and is full of links, and works fine in WinHTTrack. 
I cannot get the command line to update this site at all 
using the stored project. I'm using NT 4 SP6A, in case that 
matters.

If I copy and paste the parameters on the command line, it 
works. Any ideas or workarounds? Is it a bug or am I doing 
something wrong?
Thanks,
Joe