16-bit programs do not run natively on 64-bit versions of Windows. WOW64 does not support 16-bit applications, including old installers and MS-DOS programs.
Without using an emulator, the supported options are:
- If the PC is running 64-bit Windows:
- Install and run the game on a 32-bit version of Windows.
- If both 32-bit and 64-bit Windows are needed on the same PC, use a dual-boot setup.
- Important: the 32-bit Windows installation must be on a separate disk volume or separate physical hard disk. Installing both on the same disk volume can cause the computer to stop responding.
- If the game is a 32-bit game with a 16-bit InstallShield installer:
- Install the 16-bit InstallShield Support package first, then launch the installer.
- This only helps when the installer is 16-bit but the actual app is 32-bit.
- If the PC is running 32-bit Windows 10:
- NTVDM can be enabled, which provides 16-bit app support on Windows 10 32-bit only.
- Run PowerShell ISE as administrator and use:
- Enable:
DISM /online /enable-feature /all /featurename:NTVDM - Disable:
DISM /online /disable-feature /featurename:NTVDM
- Enable:
- This requires local administrator privileges.
- If the game still depends on 16-bit components:
- It must be updated or replaced with a version compatible with x64-based Windows.
- If a program requires 16-bit components, it cannot run on x64-based Windows.
The error values listed do not change the core limitation: on modern 64-bit Windows, 16-bit games are not supported natively.
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