Re: what value to specify as "Unique X.500 Object ID" for my custom attribute

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Using random OIDs is a bad practice and should not be done, except for
possibly in an isolated ADAM instance for testing. For any OIDs that will
be used in production, you should register them.

Microsoft provides a service where they will give you an OID prefix that you
can use. You append your values to that and manage the usage internally.
The site is here:

http://msdn.microsoft.com/certification/ad-registration.asp

You might also consider picking up Joe Richard's book (Active Directory 3rd
Edition). He has good schema stuff in there. Mine has some useful info
(such as this) for designing schema, especially for those coming from a
database background, but the audience is more for developers/application
architects.

Joe K.

--
Joe Kaplan-MS MVP Directory Services Programming
Co-author of "The .NET Developer's Guide to Directory Services Programming"
http://www.directoryprogramming.net
--
"Akhlaq Khan" <sww@xxxxxxxxxxxxxxxxx> wrote in message
news:eoCDudPzGHA.2208@xxxxxxxxxxxxxxxxxxxxxxx
hi,
we are running windows server 2003 domain environemnt in our office. we
are developing an application for our local use which uses AD as its main
source of user information. for this purpose, we need to add some custom
attributes in the AD like:

1. Employee ID
2. Date of Birth
3. Date of Joining
..etc.

i read this article about how to do it:
http://www.samspublishing.com/articles/article.asp?p=170286&seqNum=3&rl=1

the article mentioned that "Object Identifiers An OID is not randomly
generated; standards organizations such as the International
Telecommunications Union issue these identifiers to ensure that they are
not duplicated. To obtain a unique OID for a class or attribute that you
want to create, you should contact one of these standards organizations."

In the nex steps it show adding a custom attribute with OID
"1.2.840.113556.1.4.7000.142".

My question is, how do i obtain a unique OID for my attributes? whom do i
contact? do i have to pay for it? or can i just go on adding my attributes
with self made OIDs like ...
1.2.840.113556.1.4.7000.142
1.2.840.113556.1.4.7000.143
1.2.840.113556.1.4.7000.144
1.2.840.113556.1.4.7000.145

...etc. as shown in the article?

Please help! i am really confused!

Thanks in advance,

Regards,

Akhlaq.






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