Hi, Sometime ago we tryed to migrate rom exchnage 2003 to exchange 2007. We succesfully installed an Exchange 2007 server, and finally uninstalled it for other reasons, and continued working with our exchange 2003 servers correctly. Now I am trying to install an Exchange 2007 server to migrate the whole organisation. The error I am having is when I try to execute setup.com /PrepareSchema . The error message I get happend to be when it tryes to extend Active Directory Schema. I suppose this is because it worked the first time we installed an exchange 2007 server and there is no need to execute it again. The point is that when I try to find the Exchange Administrative Group, I cannot find it, I just find the Administrative group that works with Exchange 2003 (First Administrative group). My fear is that as I do not have that administrative group, I am not sure if coexistence with exchange 2003 will work. Do you think I can go on and try to install the new Exchange 2007 Server. Thank you very much. Kind regards. David Fernandez.

Please post error messages and notifications you receive when running the /Prepare switches.

Hi, this is the message: "D:\>setup.com /PrepareSchema Bienvenido a la instalacin desatendida de Microsoft Exchange Server 2007 Preparando la instalacin de Exchange No se instalarn funciones de servidor Realizando las comprobaciones previas obligatorias de Microsoft Exchange Server Comprobaciones de la organizacin Progreso ......................... FINALIZADA Configurando Microsoft Exchange Server Ampliacin del esquema de Active Directory Progreso ......................... ERROR Error inesperado y se est generando un volcado de Watson: El sistema no puede encontrar el archivo especificado El sistema no puede encontrar el archivo especificado La instalacin de Exchange Server ha detectado un error." I am sorry but is in english, the error prompt in the last part Configuring Microsoft Exchange Server, Updating legacy permissions and it says something like System cannot find specified file Thank you very much kind regards

Check out this other issue that seems similar. It appears that the server you are running the /prepare on does not have the AD Tools installed. http://social.technet.microsoft.com/Forums/en-US/exchangesvrgeneral/thread/01b8694c-e4d3-4ed9-9da8-022bd8f6882c/

hi, thank you for your posts. I do not get an of what Active Directory Tools are, Do you mean I need to install AD DS? if not, where do I find those AD tools? I have executed setup.com /PrepareLegacyExchangePermissions and it run correctly, so next step seems to be setup.com /PS (where I get the error) Thank you very much. Kind regards.

hi, I have installed AD DS tools and download Exhcnage 2007 SP3, and it worked, don't know if it worked for the first reason, the second one or a combination of both. Now I will go on migrating from Exchange 2003 to Exchange 2007. Thank you everyone. Kind regards.