I know the best practice (or at least I was told so) for order of upgrade is to upgrade one's active directory to 2008 before deploying Exchange 2010 (upgrading our 2003 Exchange to 2010 with temporary coexistance) but why? We are already planning to upgrade our active directory from '03 to '08 R2 but my management want's Exchange 2010 in faster. So, we were planning an upgrade path with coexisting 2003 and 2010 exchange servers and then upgrading our AD to '08. What are the pitfalls, issues etc. with this course of action as opposed to upgrading AD first? Thanks in advance!!

Pretty much these two cover it. http://technet.microsoft.com/en-us/library/aa998186.aspx http://technet.microsoft.com/en-us/library/bb123715.aspx J

Pretty much these two cover it. http://technet.microsoft.com/en-us/library/aa998186.aspx http://technet.microsoft.com/en-us/library/bb123715.aspx J

Hi, Installing Exchange 2010 to the current Exchange environment and then upgrade your AD to 2008, is that ture? Base on my reseach, there's no known issue for that deployment. Please verify the health of your Exchange orgnization before you begain to upgrade AD to windows 2008. You can shut down your Exchange 2003 and then monitor wether Exchange 2010 can work well. After you upgrade, please check if Exchange can find the DC with checking event 2080. Event ID 2080 from MSExchangeDSAccess http://support.microsoft.com/kb/316300 Upgrading an Active Directory Domain from Windows Server 2003 to Windows Server 2008 or Windows Server 2008 R2 http://msmvps.com/blogs/mweber/archive/2010/02/10/upgrading-an-active-directory-domain-from-windows-server-2003-to-windows-server-2008-or-windows-server-2008-r2.aspx Xiu

Hi, Installing Exchange 2010 to the current Exchange environment and then upgrade your AD to 2008, is that ture? Base on my reseach, there's no known issue for that deployment. Please verify the health of your Exchange orgnization before you begain to upgrade AD to windows 2008. You can shut down your Exchange 2003 and then monitor wether Exchange 2010 can work well. After you upgrade, please check if Exchange can find the DC with checking event 2080. Event ID 2080 from MSExchangeDSAccess http://support.microsoft.com/kb/316300 Upgrading an Active Directory Domain from Windows Server 2003 to Windows Server 2008 or Windows Server 2008 R2 http://msmvps.com/blogs/mweber/archive/2010/02/10/upgrading-an-active-directory-domain-from-windows-server-2003-to-windows-server-2008-or-windows-server-2008-r2.aspx Xiu

Pretty much these two cover it. http://technet.microsoft.com/en-us/library/aa998186.aspx http://technet.microsoft.com/en-us/library/bb123715.aspx J Are these working?Sukh

Pretty much these two cover it. http://technet.microsoft.com/en-us/library/aa998186.aspx http://technet.microsoft.com/en-us/library/bb123715.aspx J Are these working?Sukh

Yes, they work. However, if you had looked carefully you would have seen that he URLd everything including his name to a completely false URL. So, copy and paste the text, dont click the link. Then youre god. John is getting old. He cant help it "Sukh828" wrote in message news:0a76ce54-9542-4adf-aaf9-a5d29cf2bb1e... Pretty much these two cover it. http://technet.microsoft.com/en-us/library/aa998186.aspx http://technet.microsoft.com/en-us/library/bb123715.aspx J Are these working? Sukh Mark Arnold, Exchange MVP.

oh yes, your right, cheersSukh