Actually,
I know it works with Exchange prior to SP2. There is an add on on the Exchange CD which enables OMA (Outlook Mobile Access). Essentially, it creates another virtual directory (OMA), through which ActiveSync can access and synch with Exchange 2003.
Try this site:
http://www.msexchange.org/tutorials/...rver_2003.html . It has a short tutorial on setting up OMA.
Once you have gotten that far, you just need to configure ActiveSync (on the PPC) to talk directly to Exchange 2003. This also is fairly easy. Open ActiveSync, and in WM2003SE I think it is under options, but on WM5, you will find a configure server entry on the ActiveSync menu.
When you type in the server, just use the fully qualified domain name of your exchange server. It works much better if you can use the same name inside and outside of your firewall. You do not need to add the "http://", or the "/OMA/". Just the host name. After that, enter your credentials, and maybe a schedule if you want one.
Your PDA will now synch with Exchange over the net.
HTH
Ken