The open-source winevdm project translates 16-bit Windows calls to Win32 and emulates CPU instructions to run old applications on 64-bit Windows. It offers a way to try legacy business tools and Windows 1.x through 3.x software without installing an entire old operating system. Dependencies such as an x86 runtime may be required, and compatibility varies by application. The project explicitly describes its DOS support as incomplete and recommends separate tools such as DOSBox for DOS programs.