Many online forums use vBulletin as their forum engine. For each forum user, vBulletin provides a limited inbox for private messages. It also lets users to download their inbox as a single XML file.
vBulletin PM Reader is a free utility for managing your private messages in different vBulletin forums locally. It imports XML files generated by vBulletin, parses all the messages, and stores them in a local database.
vBulletin PM Reader can recognize BBCode formatting tags and smilies in messages and generate appropriate text formatting for them in its preview pane and exported HTML files.
Different smilies sets could be assigned to different forum data files.