Do you have a Palm IIIx series computer with an axxPac SmartMedia adapter? It really needs some type of VFS driver to make it useful, doesn't it? This is probably the only Palm series memory card adapter that does not have a VFS driver available!

Things that currently work with it are Launcher III

Of course, if you're absolutely silly and want to take risks, you can try playing around with axxPacVFS. What guarantees do I make? Umm, that it's not complete, that it will probably crash your Palm very badly, that it will not work with any version 4 OSes, and some more things too, I think.