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Decompiling Hyper-V Manager to rebuild it from source

This post guides through decompiling Hyper-V Manager to rebuild it from source, aiming to assess its value for potential open-sourcing. It explores manual and automated decompilation processes, including troubleshooting and enhancing the tool, advocating for community-led improvements to this widely-used but neglected software.

In theory, Hyper-V Manager has been replaced by Windows Admin Center, but for most users out there, switching to a localhost web application with self-signed certificates feels like a major downgrade. Hyper-V Manager is a mature product with a large number of users with a long list of relative minor improvements or fixes that would make a huge difference. This is what I originally tried, and thought I was successful until I realized using Process Explorer that the DLLs from the global assembly cache were loaded instead, and they can't be removed without uninstalling Hyper-V Manager.

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