Microsoft released a critical out-of-band patch on October 23, 2008. We will be applying this patch to the CoC Exchange servers beginning at 10:00 PM, Saturday, October 25, 2008. This will affect CoC faculty and staff who use Exchange for email and calendaring and CoC BlackBerry users. Exchange services will be intermittently unavailable during this maintenance window, which is expected to be complete by 11:00 PM, October 25. Email will be queued and delivered once services are restored. CoC BlackBerry devices will continue to be able to make and receive phone calls during this maintenance period but will experience an interruption in email and calendaring functions.