WiX + ARM64

[jakepetroules]

The WiX Package Platform attribute doesn't seem to support the "ARM64" value yet. As Windows 10 is coming to ARM64 soon, will there be a new value added for this?

[robmen]

Does the Window Installer support ARM64?

[barnson]

The Win10CU SDK hints that it will:

#define IPROPNAME_ARM64            TEXT("Arm64")

[barnson]

Handling the CAs is left as an exercise for the reader.

[be5invis]

Microsoft just announced a ARM based Surface Pro.
May need to prioritize this.

[be5invis]

https://docs.microsoft.com/en-us/windows/win32/msi/64-bit-windows-installer-packages
Some information may be helpful

[campt]

We are supporting ARM64 and have had to do some interesting hacking for ARM64 for our WIX based install package. Having an ARM64 native version would really help since we end up relying on the x86 (32-bit) emulation support on the ARM64 platform (which requires some post-editing to set it to an ARM64-bit install), which means we can not directly install ARM64 drivers but instead have to shell out to another ARM64 native process to complete setup.

[barnson]

ARM64 support is available in WiX v3.14.

[ksubbaraman]

Thanks @barnson. We wanted to do the below and will wix 3.14 supports both.

1. Ability to select platform type as Arm64 for our msi.
2. Have our custom action(that use wix libraries) to compile using Arm64 platform.

[barnson]

Yes.

[ksubbaraman]

Thanks @barnson, this is going to be very useful to us. Also, wanted to check when 3.14 would become production-ready, we would like to use it soon.

[voronoipotato]

Thank you everyone who worked on this!!!

[kilasuit]

Is this still needing to be an open issue?

[AraHaan]

What about 32 bit arm? I have installer projects for .NET to try to generate 32 bit arm installers (using dotnet/arcade) but it results in only win-x86, win-x64, and win-arm64 installers to only be generated using the latest stable build.

[rseanhall]

Where can you run 32-bit ARM code on Windows? The initial 32-bit ARM on Surface devices required it being signed by a special Microsoft key. The only other place I know of today is nano containers, which would require a whole bunch of work on our part to only reference subsystems that are available on nano. Also, Windows Installer is not available on nano.

[barnson]

32-bit ARM was supported briefly back in the original days of Windows on ARM. (The remote debugger tools installers for VS were built with WiX, for example.) But as that wasn't an option outside Microsoft, 32-bit ARM support was dropped.

[jaykrell]

ARM32 works on ARM64 devices.
I don't know the official development/signing story, but it is obviously there.
5 architectures! x86, amd64, arm32, arm64, arm64ec.

[lextm]

@jaykrell ARM32 is going away on Windows 11 ARM64 as announced in this article.