KB 932599 - Exchange 2003 DST fix (KB 926666) - may not be able to mount info store afterwards - Event ID 9519 and 9518

1. We are using exchange 2003 with SP2 on Windows Server 2003 Enterprise Edition with SP2.
2. There is another machine server with windows server 2003 on it and a program from Vodafone called Visto installed on it so that we can use the outlook to send and receive mails from the mobile.
3. The mobile device Succeeded to receive mails through the outlook but it failed to send any mails.
4. Vodafone Engineer told us that it is due to a security update No. KB926666 installed on the exchange server .
5. We tried to uninstall it, when we do so a message appears saying that it is already uninstalled, but it still appears in the add and remove programs.
6. And we read about this update and noticed that it really stops the mobile devices from sending mails through the outlook.
7. So please reply as soon as possible how can u help us, and what do u recommend us to do.

Thanks for your patience and advanced cooperation