Among veteran system administrators, WINNT32.EXE is remembered with a mix of nostalgia and trauma:
You will generally find this file in the folder on a Windows installation disc or within the installation files on your hard drive. It is not a standard part of the C:\Windows\System32 folder after the OS is already installed. Important Command Switches /syspart WINNT32.EXE
When Windows NT 4.0 was released in 1996, most installations were performed via boot floppy disks or the CD-ROM’s DOS-based WINNT /B command. WINNT32 was introduced as a convenience for users already running NT 3.51. It allowed an in-place upgrade without rebooting to DOS. Among veteran system administrators, WINNT32
Z:\I386\winnt32.exe /s:Z:\I386