From Sept. 6th 2000 to May 18th 2001 I represented that ivtools was
dual-licensed under its original BSD-like license and the GPL.  On May
18th 2001 I became aware of the complete requirements for
dual-licensing against GPL (in terms of required headers in each
source file), and decided to discontinue dual licensing for the time
being.  ivtools is still free software, as defined by the Free
Software Foundation, it's just not dual-licensed with the GPL.  I
would still be amenable to the creation of a dual distribution (with
provisions for possible GPL-only enhancements) if requested by other
collaborators.

Scott Johnston
http://www.ivtools.org