I have a problem with one way calendar syncronisation which I need some assistance with please! If the users create an appoitment in Outlook, it syncs to their handhelds no problems; but if they create it on the handset it doesn't appear in Outlook.

Our Setup:

Exchange Server 2008 running on a Windows Server 2008 (X64) platform
BES Express V5.0.2.29 running on a Windows Server 2008 (X64) platform (sepearte servers)

Everything seems to work fine apart from this calendar sync problem and I've done a lot of poking around before posting on here. Lots of pages on the net refer to a problem with a mismatched CDO.DLL...well, I have a CDO.DLL on the BESX server, but there isn't one on the Exchange 2007 server! I've read lots of posts with this scenario in reverse, but I can't work out why my mail server doesn't have a CDO.DLL. I have also installed MAPI and Collaborative Data Objects 1.2.1 on the mail server....still no CDO.DLL. The BESX Server has the Exchange Management Console installed and is 'service packed' to the same level as the mail server.....any ideas guys?

Moved to a more appropriate section.

Er...where?

You are now in the "BES Admin Corner" section of this forum.

I guess you mean Exchange Server 2007.

Have you checked the wireless calender sync in both directions is switched on?

You don't need the Exchange Management Console on the BES server. You should install the MAPI and Collaborative Data Objects 1.2.1 on the BES server.

Oops...yes, Exchange 2007!

The calendar sync is turned on in both directions on the BESX console, it's just not working.

A few questions for you:

If I remove the Exchange Console from the BESX server, will this have a detrimental effect on the server?

How come I don't have CDO.DLL on the Exchange Server, despite the fact I have installed MAPI and CDO 1.2.1?

Should I install MAPI and CDO 1.2.1 BEFORE removing the Exchange Console, or AFTER?

No.

I don't know, but again, you don't need the CDO on the Exchange Server.

On the BES Server, I have all the needed files in

C:\Program Files\ExchangeMapi

After.

Many thanks for the reply. I have removed Exchange Management Tools from the BESX server and installed MAPI and CDO 1.2.1. and the BESX server is still working fine. I still have my original problem though, when I create a calendar entry on the handheld it doesn't appear on the users Outlook calendar. I noticed that when I created the calendar entry on the BB, the icon appeared in the top right which looked like it was trying to update (the horizontal arrow icon), but still nothing appeared on the users Outlook 2007 calendar.

Forgot to say: I too have the required files on the BESX server in the C:\Program Files(X86)\ExchangeMapi folder (my server is X64).

Have you restarted BES? Done a cold reboot of your device?

Also have you checked the logs?