[rules-users] Sessions, WorkingMemory, Long lived facts

I have a question concerning facts. I have a service based application XML IN -> Business Objects -> Rule Processing -> Business Objects -> XML OUT Pretty straightforward. In the rule processing I will lazily load objects into WorkingMemory that drive some of the business rules. For instance, if a new Windows Server(Business Object) is installed, ensure its OS is only Windows Server 2007 (lazily loaded DB object). What I would like to do is be able to either preload the working memory with this data, or preferably, lazily load the data. So my question is how do you place facts into working memory when you create a new session each time without having to assert them everytime? Or this that a stupid question...Should the question be, since working memory/sessions aren't thread safe, i.e. one can't be shared by everyone, what is the best way to place long lived facts into memory of all sessions? thanks dave