Exchange Installation Error related to Active Directory Schema

I have installed active directory on win 2k3.  I want to install Exchange 2003
on the same machine.
Ran the setup using an account which is the member of Domain Admin, Schema Admin
and Enterprise Admin.
During the installation of Exchange 2003 (forestprep) it gives me the error
"Either you do not have the permission to update the Active Directory schema or Active directory service is currently too busy"

I have corrected the registry entry to change the value to 1 of "schemaupdateallowed"
in HKLM/System/CurrentControlSet/Services/NTDS/Parameter"

Have also checked the FSMO Roles.
& the following steps defined on this page....

http://support.microsoft.com/default.aspx?scid=kb;en-us;262068&sd=tech



Here is the result of netdiag..........



    Computer Name: EXC
    DNS Host Name: exc.exchangetest.com
    System info : Windows 2000 Server (Build 3790)
    Processor : x86 Family 6 Model 8 Stepping 1, AuthenticAMD
    List of installed hotfixes :
        KB819696
        KB823182
        KB823353
        KB823559
        KB824105
        KB824141
        KB824151
        KB825119
        KB828035
        KB828741
        KB833987
        KB834707
        KB835732
        KB837001
        KB839643
        KB839645
        KB840315
        KB840374
        KB840987
        KB841356
        KB841533
        KB873376
        KB883935
        Q147222
        Q828026


Netcard queries test . . . . . . . : Passed



Per interface results:

    Adapter : Local Area Connection

        Netcard queries test . . . : Passed

        Host Name. . . . . . . . . : exc
        IP Address . . . . . . . . : 192.168.0.239
        Subnet Mask. . . . . . . . : 255.255.255.0
        Default Gateway. . . . . . : 192.168.0.132
        Primary WINS Server. . . . : 192.168.0.239
        Dns Servers. . . . . . . . : 192.168.0.239


        AutoConfiguration results. . . . . . : Passed

        Default gateway test . . . : Passed

        NetBT name test. . . . . . : Passed

        WINS service test. . . . . : Passed


Global results:


Domain membership test . . . . . . : Passed


NetBT transports test. . . . . . . : Passed
    List of NetBt transports currently configured:
        NetBT_Tcpip_{070262F6-4EDB-4E95-BE30-942B0DF47B6D}
    1 NetBt transport currently configured.


Autonet address test . . . . . . . : Passed


IP loopback ping test. . . . . . . : Passed


Default gateway test . . . . . . . : Passed


NetBT name test. . . . . . . . . . : Passed


Winsock test . . . . . . . . . . . : Passed


DNS test . . . . . . . . . . . . . : Passed
    PASS - All the DNS entries for DC are registered on DNS server '192.168.0.239'.


Redir and Browser test . . . . . . : Passed
    List of NetBt transports currently bound to the Redir
        NetBT_Tcpip_{070262F6-4EDB-4E95-BE30-942B0DF47B6D}
    The redir is bound to 1 NetBt transport.

    List of NetBt transports currently bound to the browser
        NetBT_Tcpip_{070262F6-4EDB-4E95-BE30-942B0DF47B6D}
    The browser is bound to 1 NetBt transport.


DC discovery test. . . . . . . . . : Passed


DC list test . . . . . . . . . . . : Passed


Trust relationship test. . . . . . : Skipped


Kerberos test. . . . . . . . . . . : Passed


LDAP test. . . . . . . . . . . . . : Passed


Bindings test. . . . . . . . . . . : Passed


WAN configuration test . . . . . . : Skipped
    No active remote access connections.


Modem diagnostics test . . . . . . : Passed

IP Security test . . . . . . . . . : Skipped

    Note: run "netsh ipsec dynamic show /?" for more detailed information


The command completed successfully
vdhupar2001Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ikm7176Sr. IT ManagerCommented:
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Exchange

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.