In my BibleWorks9 /init subdirectory, I have over 200 files taking up 475MB of space that appear to be log files associated with updates. They date back to 2011!
For each update, it appears that there is an associated exe, ini, log, dat, and swc file. They look like this:

Name:  bwinit.png
Views: 172
Size:  19.4 KB

I'm guessing I'd want to save a couple of the most recent update sets, but is it okay to delete the rest without any problems?