It won't. You need to upgrade the server first. Luke Beamer I. S. Manager San Diego Pleasant Holidays 4025 Camino Del Rio South Suite 200 San Diego, CA. 92108 PH: 619-521-2710 FAX: 619-521-2760 Cell: 619-454-7302 From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Bruce J. Rose Sent: Tuesday, January 30, 2007 7:45 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: upgrade Don't think Exchange 2000 will run on Windows 2003 server. Bruce _____ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Alex Sent: Tuesday, January 30, 2007 10:32 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] upgrade does anybody have anu info for upgradeing windows 2000 domain to windows 2003 with exchange 2000 installed i know that there is a interorg fix that i have to run first but it seems that i also need to be enable shema update through the register is this true or is there another way thanks