Windows NT 3.5 build 549

3.5.549.1
Build of Windows NT 3.5
OS familyWindows NT
Version number3.5
Build number549
Build revision1
Architecturex86

Windows NT 3.5 build 549 is an unleaked build of Windows NT 3.5, mentioned in the file DRAWLIB.C from the Windows NT 4.0 source code.

// from build 549 (or thereabouts) we need at least one of these per
// frame!
// But not if we are using DCI??  Although the cost is small so leave it in