Is it possible to create a platform-neutral MSI?

[sharpjs]

I've made a simple .wxs file for a font, which you can see here. Orca's summary information view shows Intel as the platform of the built MSI. The MSI installs on an x64 box, does it install on an arm64 box? (I don't have one to test.) If not, is there any way via WiX to make the MSI platform-independent, such as a noarch pseudo-platform?

The relevant MSI documentation suggests that the answer to both questions is 'no':

A Windows Installer package cannot be marked as supporting both Intel64 and x64; for example, the Template Summary property value of Intel64,x64 is invalid.

A Windows Installer package cannot be marked as supporting both 32-bit and 64-bit platforms; for example, Template Summary property values such as Intel,x64 or Intel,Intel64 are invalid.

The following syntax is not supported:

[platform property][,platform property][,...];[language id][,language id][,...]
                                             ↑
                  my addition; looks like the documentation forgot to add it

[barnson]

MSI doesn't have the concept of an arch-neutral package. Windows supports x86 on Arm64 so an x86 package works "everywhere." Except it doesn't, because it's a Windows feature that can be turned off.

[sharpjs]

Thanks. That tells me what I wanted to know. Looks like one package per arch is the way to go for anyone in this situation.