Jabber/XMPP Tools already implement TLS 1.0 secure connections and will be available shortly. TLS is implemented using SChannel API, the ATL helper classes I made for SChannel might also appear here to public. Jabber/XMPP Tools also contain some reusable components such as COM objects for TCP connection, for TLS over TCP connection which implements the same interfaces as TCP connection object and thus TLS might be used fully transparently. Basically, these objecst/classes lack documentation and samples and if I manage to prepare them, this will also appear on the blog.