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AD on 64 bit

  We have Domain controller on with 500 users in windows 2003 R2 Ent 32 bit , with IIS, .net Application running.  We want to test New apps develped on 64 bit . So we are planning to install AD on 2003 R2 Ent 64 bit on another Server. Will Domain information pass from 2003 R2 Ent 32 bit to 2003 R2 64 bit?
 Will it works?
4 Solutions
just make the second server a member of the domain, then you can promote domain services to it if you wish
Sushil SonawaneCommented:
Yes there is no issue to pass information related to AD to other domain controller. There is no need to create another domain controller with 64 bits OS. But still if you want to create the you can create.
also - I would go to 2008 server for better hardware support etc. Most likely you can also test your app on win 7 64 bit.
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No problem - just install 2003R2 64 on a machine, add it to the network and DCPROMO it. Job Done.

If you want to make the new server 2008 or 2012 this is also possible.
Bear in mind if you install a 2008 DC, then you'll have to run adprep / forest prep first
Radhakrishnan RSenior Technical LeadCommented:

Adding a 64 bit DC into an existing 32 bit DC domain, you need to prepare the schema.  Run  ADPREP /FORESTPREP on the schema master and ADPrep /domainprep on the infrastructure master.

The above command only available once you inserted the R2 2nd CD.
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