Hi,
As your issue is a Domain controller behavior and related to Small Business Server 2003, I suggest discussing it in our Small Business Server newsgroup first. We might know nothing about the setup program and why your SBS server want client to run that.
https://social.technet.microsoft.com/Forums/en-US/home?forum=smallbusinessserver
In the other hand, this thread will keep open, if you get more information about this, you could also update here, and we’d like to provide help on Client side. Thanks for your understanding.
Regards,
D. Wu
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