Which program will run on a 64-bit version of the Windows operating system?

A 32-bit laser printer driver will not run on a 64-bit operating system because device drivers must match the bit architecture (32-bit or 64-bit) of the operating system's kernel.

A 32-bit video card driver will not run on a 64-bit operating system; kernel-mode drivers must have the same bit architecture as the operating system.

64-bit Windows operating systems support running 32-bit applications through a compatibility layer called WoW64 (Windows 32-bit on Windows 64-bit). This allows a 32-bit version of Microsoft Office to execute properly on a 64-bit Windows installation.

A 32-bit wireless network adapter driver will not run on a 64-bit operating system, as all device drivers must be architecturally compatible with the installed OS.