USB Workshop has posted an article on NT USB support.
We often received many requests for Windows NT 4.0 USB driver, but our replies often put a sad face on our readers. This is because Microsoft has no plans to provide USB host controller support in Windows NT 4.0. See this article at MS knowledgebase. Microsoft probably thinks who really cares for NT 4 USB support when Windows 2000 is already here, but some of us do.Read more