I am still seeing this zero byte hts-log.txt problem 
with v3.15, even on totally new site downloads.  
Sometimes it works once and creates the log, but it 
seems on subsequent downloads it simply deletes the 
log once it finishes the website download.

Does this have anything to do with a flashing 'View 
Error Log' button once the website download finishes?
Doing some diagnostics tells me that the log _IS_ 
being created during the crawl, but sometime near the 
end of the crawl, or as the crawl finishes up, the log 
is deleted or overwritten with zero bytes.  I know 
this because I can copy the hts-log.txt to another 
folder DURING the crawl and see entries that should be 
in the final log, yet when the crawl finishes the 
resultant hts-log.txt is empty (zero bytes).  (Windows 
will allow you to copy a locked file but not open it 
with r/w access directly).

Any info about this, and about the external links 
question/problem I posted a few days ago?
Thanks in advance :)