Download latest version (unstable)
16-bit Windows (Windows 1.x, 2.x, 3.0, 3.1, etc.) on 64-bit Windows
An altered version of winevdm (a 16-bit Windows emulator), ported to 64-bit Windows.
- If you get an error that VCRUNTIME140.dll is missing, install Microsoft Visual C++ Redistributable for Visual Studio 2017 (32-bit)
- Drag and drop Win16 executable file to otvdm.exe or execute otvdmw.exe.
- Download or compile
- Run "install" shortcut or right-click on install.inf and select "Install"
- You can execute Win16 binaries directly!
If the registry is initialized by Windows Update, perform the above procedure again.
You can uninstall it by running uninstall.reg.
See otvdm.ini.
- Install Visual Studio 2017
- Edit PropertySheet.props
- Compile
git clone https://github.com/otya128/winevdm.git cd winevdm mkdir build cd build cmake .. make
This program contains the following items
- CPU Emulator
- 64-bit Windows cannot modify LDT(NtSetInformationProcess(,ProcessLdtInformation,,) always returns error)
- wine based Win16->Win32 conversion codes:
Relay routines from 16-bit to 32-bit are autogenerated by convspec
BOOL16 WINAPI DestroyWindow16( HWND16 hwnd ) { return DestroyWindow( WIN_Handle32(hwnd) ); }
53 pascal -ret16 DestroyWindow(word) DestroyWindow16
- DOS emulation for Win16
- 16-bit <=> native HANDLE conversion
- Fix compatibility problems, fix compatibility problems
When 64-bit Windows detects a 16-bit installer, it has a mechanism to start an alternative installer which is not 16-bit. This program uses it.
Some Win16 programs try to save their settings in %WINDIR%<filename>.ini
In recent Windows, it is not allowed to save to %WINDIR%, so it redirects.
winevdm.exe [--app-name app.exe] command line winevdm.exe CALC.EXE
It can also run DOS executables (DOS emulator-like). You can set the DOS version with the VDMDOSVER environment variable.
DOS emulation is incomplete and it is recommended to use DOSBox or MS-DOS Player.