Export/Import Outlook calendar to ASP app?

[Dave]

Hi,

I'm wondering if it's possible for an ASP application to
synch (export/import) a user's Outlook calendar from
Exchange?

We are writing an application that uses a custom calendar
for tasks but would like to incorporate what the user has
in Outlook as well so they don't have to switch back and
forth. I'm wondering if this is possible via an XML
document.

Dave.