Corrupt zip archive
Brought to you by:
kerravon86,
tcamp
The .zip archive for 2.20 as hosted on SourceForge is
corrupt. The Debian project has 2.20 patch level 2
available as the bwbasic-2.20pl2-5 package. So if
you're looking for an unofficial source download, try
the Debian project until the official download area on
sourceforge gets fixed.