Yes George, I check the group Schemaadmin and administrator is the member of it. Also mmc schema snapin I check the permission and admin has full right. I found the article that tells me that If I have not run 2003 Server /forestprep then this mangle will not occure if I run Exchange 2003 /forestprep first. Is that true? Anyone out there have accomplish this without running "inetorgpersonprevent.ldf" and running exchange 20003 /forestprep ???? MS Article KB=325379 Under Title Active Directory forests are not vulnerable to mangled LDAPDisplayNames for these attributes in following Case... Please anyone who can confirm will be greatly appreciated. Sunny _____ From: Taylor, George [mailto:gtaylor@xxxxxxxx] Sent: Monday, May 08, 2006 10:16 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Before Upgrading to 2003 Server - LDF Problem Looks like a rights issue, are you sure your running it as a Schema Admin? Just being a member of the Domain Admins group won't do it, you'll need to be a member of Schema Admins, your "real" administrator account is by default.. George Taylor Systems Programmer Regional Health Inc. _____ From: sunil shah [mailto:sunny@xxxxxxxxxxxxx] Sent: Monday, May 08, 2006 8:04 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Before Upgrading to 2003 Server - LDF Problem Hi everyone, I have asked this before and asking again. Current setup - 3 Server all DC and running windows 2000 Enterprise server. The first server that was installed with windows 2000 Ent. And Exchange 2000 Ent. With AD, DNS and IIS (do not ask me why because was already setup before I joined the company). On this server I have copied the inetorgpersonprevent.ldf and try to run it I am getting following error. I have setup the schema update in mmc also for the server also. But when I run the intetorgpersonprevent.ldf, I receive following. Any one has any Idea.????? Connecting to "ds1.amtsolution.com" Logging in as current user using SSPI Importing directory from file "inetorgpersonprevent.ldf" Loading entries 1: CN=ms-Exch-Assistant-Name,CN=Schema,CN=Configuration,dc=amtsolution,dc=c om Entry DN: CN=ms-Exch-Assistant-Name,CN=Schema,CN=Configuration,dc=amtsolution,dc=c om change: modify Attribute 0) lDAPDisplayName:msExchAssistantName Add error on line 1: Busy The server side error is "The role owner attribute could not be read." 0 entries modified successfully. An error has occurred in the program As per other suggestion, I went to other DC and try on that server and I receive following error Connecting to "acctsrv.amtsolution.com" Logging in as current user using SSPI Importing directory from file "inetorgpersonprevent.ldf" Loading entries 1: CN=ms-Exch-Assistant-Name,CN=Schema,CN=Configuration,dc=amtsolution,dc=c om Entry DN: CN=ms-Exch-Assistant-Name,CN=Schema,CN=Configuration,dc=amtsolution,dc=c om change: modify Attribute 0) LDAPDisplayName:msExchAssistantName Add error on line 1: Referral The server side error is "A referral was returned from the server." 0 entries modified successfully. An error has occurred in the program