I get the following errors trying to install 2007 exchange on a 64bit VM 2008 server. Main server is 2003 windows server and running at 2003 level. Any idea's? Summary: 4 item(s). 0 succeeded, 4 failed. Elapsed time: 00:00:23 Organization Prerequisites Failed Error: Setup encountered a problem while validating the state of Active Directory: Setup could not retrieve the schema master domain controller information from Active Directory. Elapsed Time: 00:00:15 Hub Transport Role Prerequisites Failed Error: Setup encountered a problem while validating the state of Active Directory: Setup could not retrieve the schema master domain controller information from Active Directory. Warning: Setup cannot detect an SMTP or Send connector with an address space of '*'. Mail flow to the Internet may not work properly. Elapsed Time: 00:00:02 Client Access Role Prerequisites Failed Error: Setup encountered a problem while validating the state of Active Directory: Setup could not retrieve the schema master domain controller information from Active Directory. Elapsed Time: 00:00:02 Mailbox Role Prerequisites Failed Error: Setup encountered a problem while validating the state of Active Directory: Setup could not retrieve the schema master domain controller information from Active Directory. Elapsed Time: 00:00:02 JP Lauric

Is this a multiple-domain forest? Is the account you're using a member of the Schema Admins group? Is the schema master FSMO role holder up?Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Please check if there’s any related error event in the application log on the exchange server Please check the traces in the installation log on the exchange server Please check the binding order on the NIC, see if there’s any disabled NIC entry among it Check to see which DC has FSMO roles installed by running the following command after making sure the Windows 2003 support tools are installed NETDOM query FSMO Please make sure that all the DCs from the above result are up and running Please run the following command on the exchange server NETDIAG /v >ExchNetDiag.txt Please run the following command on the Exchange server where <DCNAME> is the NetBIOS name of a DC that exchange is connecting to DCDIAG /v /s:<DCNAME> >ExchDCDiag.txt Please make sure both the above text files are error free as well. If they have errors, please ask the question in windows server related forums to seek the adviceJames Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com