Now we have KVS 5.0 SP5 on W2K. But in next half year all servers have to be upgraded to W2K3. I planned migration by adding new KVS server on W2K3 to the current KVS site and moving users from one KVS to another but it is not possible technically (if I am wrong please correct me).
So does any have any idea how to upgrade KVS from W2K to W2K3 in most painless way?
Yes, there are the simple but long way of exporting users from archive to PST, then disable archiving, move PST to new KVS and enabling for archiving. But having about 1000 users it is not the easy way.