Upgrading windows 2000 forest to windows 2003

[Guest guv]

I am looking into upgrading our windows 2000 domain and forest to windows

2003 native domain and forest. We have 2 windows 2000 domains, I have run

the adprep command in our root domain. I have other questions regarding our

servers:

 

1. We have 1 windows 2000 domain controller. Its also a windows 2000 TS

licensing server and a DNS server. I want to demote this server by using

dcpromo as I dont want to upgrade this to a wiindows 2003 domain controller,

I want to leave it as standard windows 2000 server. The question is, is

there any issues with demoting a DC. Also once demoted will it still run as

a DNS server and a terminal licensing server. We have many servers using

this server as its primary DNS.

 

2. Do i need to run Adprep on my second domain

 

3. I have another windows 2000 DC. Can i do an in place upgrade to a

windows 2003 domain controller. Is it matter of inserting a windows 2003

CD.