I have the pleasure of supporting an ancient 16 bit program for a client. It worked fine on their old server running Windows Server 2003 (32 bit) but will not work now that a new 2008 R2 server ...

This feature allows users to run 16-bit applications on 32-bit computers. However, the feature is not available on Windows 11 and other 64-bit versions like Windows RT and Windows 10 IoT Core.

Windows 10 still uses WOW for running 32-bit applications on 64-bit versions of Windows -- not just redirecting DLL calls but also mapping or mirroring registry keys from their 64 to 32-bit ...

Xiaomi and OnePlus have both implemented a 32-bit to 64-bit Arm binary translator called "Tango" to allow old apps to run on their phones.

When the 32/64-bit transition was new, all benchmarks showed a substantial performance boost (in the vicinity of 10-25%) by just switching to 64-bit on the same hardware, and that was with systems ...

VirtualBox is flexible enough to handle many types of 32-bit and 64-bit configurations. If you need to run a 32-bit version of XP in a 64-bit host, you can do that without any problems.