Diffrence between windows 2000 server and windows 2003

1- In windows server 2003 you can rename your domain.

2- Cross forst trust relationship is possible.

3- active directory version is 1.1

4- site to site repliaction is possible.

5- In windows 2003 DNS a new zone added that's Stub Zone.

6- IIS 6.0  intro in which application pool is new thing   
added

7- volume shadow service