NT4 emb
010-0123456

1 Build the NTe run-time image, but don't boot from it.
2 Use regedit.exe to load winn\system32\config\system and syste.alt, change these keys:
In [SYSTEM\ControlSet001\Control\ProductOptions]
Delete "ProductEvalInstallTime" an 'ProductSuite';
Remain "ProductType" as WinNT
In [SYSTEM\Setup]
change "SystemPrefix" to hex:d9,13,00,00,00,20,50,58
This will hoax the sytem to believing that it's full version of Windows NT 4.0 Workstation. 
Of course I get this combination from NT4 workstation installation.