So this is IT more than programming but Google found nothing, and you guys are just the right kind of geniuses.

**My Exchange Server 2007 and Entourage clients don't play nice.**

Right now the big issue is that the entourage client will not connect to Exchange 2007 ( Entourage 2004 or 2008) 

The account settings are correct and use the proper format of `https://exchange2007.mydomain.com/exchange/user@domain.com`

The issue is with a dll called **davex.dll** when it is where it belongs, the OWA application pool crashes a whole bunch of nasty things happen.

When it isn’t there, I can connect to everything fine - and the OWA app pool doesn’t crash - but Entourage never propogates the folders in the mailbox and doesn't send or receive.

Any help or ideas would be appreciated: Microsoft support is silent on the issue, and Google doesn't turn up much.