So far this thread is 13 posts long and I have to wonder how much you've benefitted. What you really need to do is provide as much info as possible and to outline in pseudo-code of flow chart fashion what you expect this to do.
With the limited information you're dribbling out, I doubt someone will write you an entire script you can run with. By outlining it and breaking it into individual tasks we can tackle one task at a time.
So... some more questions:
Admin or logon script? If admin, need some logging to ensure none get missed. If Logon, Admin rights exist but need to either check if updated or update regardless on every logon.
Any unique Hosts files? If all Hosts files within specified groups are identical with no exceptions then it's a non-issue, otherwise...
In the end, I still think Round Robin DNS 'A' records have merit. I did a bit of research and NT4 supports it.
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Give a man a fish and he will be back for more. Slap him with a fish and he will go away forever.
