Howto add new attribute via LDIF file

[Manolax]

I need to extend our Active Directory schema via an LDIF file.
Does anybody know the syntax and switches I have to use to add a new attribute to the computer class?
The attribute will be used by an application to store a password hash with the local administrator password of the client.

I would like to have an LDIF file which i can import with the LDIFDE tool from Microsoft.
I've tried to write it on my own but I don't know if it's complete or forgotten some switches they have to be in the file.

Here is my attempt:

dn: CN=PasswordHash,CN=Schema,CN=Configuration,DC=AD,DC=local
changetype: add
adminDisplayName: PasswordHash
attributeID: 1.2.840.113556.1.4.7000.159.24.10.65
cn: CN=PasswordHash
description: Password Hash of Local Administrator account
isSingleValued: TRUE
lDAPDisplayName: PasswordHash
distinguishedName: CN=PasswordHash,CN=Schema,CN=Configuration,DC=AD1,DC=local
objectCategory: CN=computer,CN=Schema,CN=Configuration,DC=AD1,DC=local
objectClass: computer
name: PasswordHash
searchFlags: 0

[Humberto]

You can check out the article termed "Since the introduction of Active Directory with the release of Windows 2000, Microsoft has provided customers with the base schema definition for implementing Active Directory" from here - http://technet.microsoft.com/en-us/m...05.schema.aspx