Windows NT 3.51 build 944

Windows NT 3.51 build 944.1 is the first beta release of Windows NT 3.51 and the only one that was distributed through the Microsoft Developer Network. It's also the earliest confirmed leaked build of Windows NT 3.51 (not counting build 854.1 as its status is disputed).

As Windows NT 3.51 was mainly a bug-fix release (other than the addition of a PowerPC port), the x86, Alpha and MIPS builds offer no major improvements over their Windows NT 3.5 counterparts, minus a change in the branding. However, the PowerPC build is unique, as it is the earliest ported build still available.