RTF to XML Conversion (Majix or otherwise)

Hello,

I'm interested in finding a reliable, preferably free
RTF2XML converter, written in Java or C++ if possible.
 I've experimented with Majix 1.2.1, and discovered
some limitations (e.g. it doesn't convert all text
properties, such as super/subscripts, small caps,
etc.).  The Majix documentation hints at a Majix Pro
that was supposed to me more extensible, but I can't
find anything in the literature.  

In short, I'm looking for a converter that will allow
you to specify a DTD to drive the RTF to XML
conversion process.  Any help you can provide would be
greatly appreciated!

Thanks, 

Jim Caprio


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