Ya kinda proved my point.
Well, I don't see how you reach 
that conclusion, but I don't want to engage in a debate 
with you just for the sake of macho posturing.  
As I understand, Active Directory integration on a Linux based NAS is provided by the Samba 
package (www.samba.org).  Any NAS device's AD compatibility with a Windows Server OS is 
mostly dependent on the version of samba which that NAS's manufacture chooses to 
implement, the features available in that version of Samba, and which features the 
manufactures decides to expose to the users.
I think hilaireg, fordem and Piotr were very polite with their enhancement request, and we can
only speculate whether it is reasonable for D-Link to implement this feature request.
Active Directory integration is possible on the DNS-323, just not within the D-Link provided firmware.