All functions of a win2k server continue to work while it's being upgraded with service packs. Any shares hosted on this NAS device will still be accessible to end users until you're able to reboot the box. HTH J -----Original Message----- From: Angus Macdonald [mailto:Angus.Macdonald@xxxxxxxxxxxxxxxxxxx] Sent: Wednesday, November 05, 2003 8:01 AM To: windows2000@xxxxxxxxxxxxx Subject: [windows2000] Very quick question -applying SP4 I have to apply SP4 to a critical NAS unit shortly. Am I correct in thinking that network connections, shares etc will continue to be available until the server is restarted, or are they disconnected at the start of the update process? The extra few minutes could be critical. Regards Angus