Looks VERY, VERY interesting to me as not a long time ago I've started creating my own serialization library. Are you interested in discussing this subject? One thing I really need is serialization solution existing for C++ and Java. That is I'd like to serialize same date by C++ program and then read it by Java program. As I found your library I'm wondering if I shoudn't just write Java version of wxArchive. In that case your help would be necessary.
One thing I found in your library - it seems below method
(taken from doxygen-generated documentation available form
http://www.xs4all.nl/~jorgb/components/ ... chive.html) should be named ReadArrayString:
bool ReadString (wxArrayString &value, const wxArrayString &defval)
Anyway I'm impressed. Such a library should be included into official wxWidgets distribution.