This is the LibOFX library. It is a API designed to allow applications to very easily support OFX command responses, usually provided by financial institutions.
See http://www.ofx.net/ofx/default.asp for details and specification.
LibOFX is based on the excellent OpenSP library written by James Clark, and now part of the OpenJADE http://openjade.sourceforge.net/ project.
OpenSP by itself is not widely distributed. OpenJADE 1.3.1 includes a version on OpenSP that will link, however, it has some major problems with LibOFX and isn't recommended.
Since LibOFX uses the generic interface to OpenSP, it should be compatible with all recent versions of OpenSP (It has been developed with OpenSP-1.5pre5).
LibOFX is written in C++, but provides a C style interface usable transparently from both C and C++ using a single include file.
