Table:
text: Comparison of Microsoft Windows versions
Technical information
Windows NT
Name_ Architecture USB_support LFN_support APIs
Windows NT 3.1 32-bit No Yes ( NTFS and HPFS volumes only) Win32, OS/2 , POSIX
Windows NT 3.5 32-bit No Yes (except on CDFS volumes) Win32, OS/2, POSIX
Windows NT 3.51 32-bit No Yes (except on CDFS volumes) Win32, OS/2, POSIX
Windows NT 4.0 32-bit Yes (if the Ion USB update is installed) Yes Win32, OS/2, POSIX
Windows 2000 32/64-bit Yes (USB 2.0 with update or SP4) Yes Win32, OS/2, POSIX
Windows XP 32/64-bit Yes (USB 2.0 with update or SP1+) Yes Win32, .NET
Windows Server 2003 32/64-bit Yes (USB 2.0) Yes Win32

Question: According to the Microsoft Windows versions, what is the lfn support on Windows NT 3.1 in the technical information?