Windows NT 3.5 build 717

Windows NT 3.5 build 717.1 is an unleaked build of Windows NT 3.5, mentioned in the file  from the Windows NT 4.0 source code.

// Continue to execute interrupted context. The argument is the pointer to part of // the context structure starting from ES: // ES, DS, EDI, ESI, EBX, EDX, ECX, EAX, EBP, EIP, CS, EFLAGS, ESP, SS. // This function is used as substitute to NtContinue. NtContinue hasn't mutual // exclusion for using context with NtGetContextThread and NtSetContextThread till // build 717. // This way seems to be safe enough.