Where abouts in the registry does Fortress store the keys in the registry when the option "Automatically store keys in registry" is selected?

I've looked under HKEY_LOCAL_MACHINE\SOFTWARE\PragmaSystems but can't find anything that looks appropriate.

Thanks.

We need some way of synchronising keys between two load balanced FTP servers, so that clients are not asked to confirm their key twice.  The only things we can think of at the moment is to synchronise the keys in the registry.