Does Microsoft.WITDataStore64.dll have native ARM64 support?

Question

We are currently evaluating support for Windows on ARM64 devices and need clarification regarding the architecture support of Microsoft.WITDataStore64.dll.

Specifically:

Is there an official ARM64 build of Microsoft.WITDataStore64.dll available?

If not, is ARM64 support planned for future Azure DevOps / TFS client libraries?

Is the supported scenario on Windows ARM64 limited to running the x64 version under Windows emulation?

Context:
We are loading Microsoft.WITDataStore64.dll as part of the Azure DevOps Work Item Tracking client stack, and our extension/process must run natively on ARM64 where possible. Since this is a native DLL, architecture compatibility is critical.

We would appreciate official confirmation from the product team regarding ARM64 support status and recommended guidance.

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Answer 1

Hi @utkarsh bandekar ! It sounds like you're looking to clarify the support for Microsoft.WITDataStore64.dll regarding ARM64 architecture. Here’s what I can tell you:

1. Current ARM64 Support: As of now, there is no official ARM64 build of Microsoft.WITDataStore64.dll. Therefore, the only way to run it on ARM64 devices is through the x64 version under Windows emulation.
2. Future Plans for ARM64 Support: Currently, there hasn't been a specific announcement regarding future support for ARM64 in the Azure DevOps/TFS client libraries, including Microsoft.WITDataStore64.dll. For future updates, it would be a good idea to keep an eye on the Azure DevOps release notes and changelog.
3. Running x64 Under Emulation: Yes, you can run the x64 version of the library on an ARM64 device using Windows' built-in emulation capabilities. However, this could come with performance overhead since it’s not natively optimized for the ARM architecture.

Since you're looking for clarification from the product team, I recommend checking the Azure DevOps developer community, as that’s usually the best channel for inquiries about product features and roadmaps.

Hope this helps, and feel free to ask if you have more questions!

Reference Documentation:

1. Add Arm support to your Windows app
2. Develop Applications for ARM64 Devices

Note: This content was drafted with the help of an AI system.