I need to determine if Service Pack 6a has been installed on a Windows NT Professional workstation I have. If I right click the "My Computer" icon and select properties it just says "Microsoft Windows NT 4.00.1381". Does this tell me that no service pack is installed or did the system properties just not display the service pack level in this particular version of Windows? How can I determine what the latest service pack installed is? Is service pack 6a still available? Thank you.
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