Hi there,

If I write some code that returns all appointments for Exchange users that
have delegated reveiw permissions to me, how should I cache the info so that
I only need to return appointment data that has been modified since the last
time I checked? I understand how to filter out older, unchanged data but
I'm wondering if there is a way that outlook cache's the older data and for
how long? Alternatively, could I store that user's data in a local calendar
folder or do I need to write it to a database or other local data store?

Assume Windows XP/Outlook 2003/Exchange 2003.

Thanks