Shifter & Elfmanne, I hope I can answer both of your questions together.
Using the Microsoft Sync Framework you are able to connect both Outlook / Exchange to a database application whether that database is SQL Server or some other database. The core issue is whether you can get programatic access to the data in the database as well as the information in Outlook. From the database side I am sure you will have access to the information in some way unless this application was written by some third party and you were not given user access to the data. On the Outlook side, yes you can also get programatic access to the data so you should be able to integrate those two endpoints together. As I mentioned, we are working on submitting a sample of accessing Outlook to the MSDN but it will take a little time before we can submit it since we want to make sure the technique is solid.
In general, to synchronize information using the Microsoft Sync Framework, you not only need programatic access to the data, but you also need some place to store the metadata (which is all the change information required for synchronization). In the best case, you would store this in the database, but sometimes that might not be possible so you might alternatively store the metadata in files on the files system. I say the database is the best place because you might also be able to build a system to update the metadata with change updates as they happen (perhaps through triggers) and this will make synchronization go a lot quicker because you do not need to update the metadata before synchronization starts.
We talk about this more in the following whitepaper:
http://msdn2.microsoft.com/en-us/sync/bb821992.aspx
I should point out that we have not released a provider for Outlook yet, which means if you wanted to tie into this you would need to create your own Outlook provider to access the data within Outlook. The provider would sit on top of the Microsoft Sync Framework. We discuss the concept of a provider more in the above whitepaper.
Also included in the Microsoft Sync Framework CTP1 download is a sample called NTFSSample which shows how to set up synchronization and stores the changes in files. You could use this as a basis for creating your Outlook providers if you like.
I hope that helps,
Liam
