Unicode RTF export

[tkuypers at pandora.be]

A client supplies RTF-files saved from MS-Word (Mac & PC) with all kind of
special characters in it.
I'm able to import this RTF in my app, getting all specs and all special
chars are maintained in this text.

When editing this text and exporting it as an RTF-file, all special chars
are gone when reopening the file in Word.

After looking into the specs of the RTF-format, as mentioned in the RR
documentation, I found that there are special control-chars in the RTF
format to use Unicode-files, and thus maintaining all special chars.

Is there a way to export Unicode text as RTF, or is there another way to
keep all special chars when exporting text-files?

Warm regards,
Ton Kuypers