Hi, I just try to replace a WebForm which worked in OWA 2000/2003 with an aspx page to run in OWA 2007 so that it handles items of a custom message class. I can find no samples where and how to add a web reference to the Exchange Web Services which I guess we are supposed to use to access the item data of elements we want to display through custom aspx pages. I tried to get some insight by browsing through the default OWA forms. I found that they all derive from OwaForm and tried to inherit my asp.net class from it as well but I found that everything which might get access to data was implemented with internal classes. Digging deeper and deeper brought me actually to Microsoft.Exchange.StoreProvider.dll which exports Microsoft.Mapi.* namespaces. It seems that OWA 2007 itself uses an unmanaged MAPI wrapper to access data. It must be a bit more complex because current MAPI implementations are 32 bit only. I here MAPI calling "Morituri te salutant" ;-) So is EWS really the way to go or can this StoreProvider be used for custom OWA forms as well? Up to now the Exchange 2007 SDK (even with SP1 update) is quite quiet when it comes to OWA customization, so any help or tips are welcome. -- SvenC
