Using the Employee-ID attribute in Active Directory.
Active Directory has an Employee-ID attribute for user objects but unfortunately this attribute is not exposed in UI (i.e. in Active Directory Users and Computers) so you can’t easily configure it if you want to use it. You can of course configure this attribute of a user account using one of the command-line tools for managing Active Directory such as LDIFDE or DSMOD, and you could also use ADSIEdit or even ADSI scripts to configure it. What you may not be aware of however is that you can programmatically extend ADUC to expose this attribute in the UI. To learn how to do this, download the ADSI SDK and install it and look in the SamplesDSUIuserextuserproppage where you can learn how to create an extension for employee ID and thumbnail photo.

Article written by MyComputerAid.com