These .winmd files provide the default metadata for the Windows API. This is used to generate the windows and windows-sys crates. To view the metadata, use a tool like ILSpy.

• Source: https://www.nuget.org/packages/Microsoft.Windows.SDK.Win32Metadata/
• Version: 63.0.31

• Source: https://www.nuget.org/packages/Microsoft.Windows.WDK.Win32Metadata/
• Version: 0.13.25

• Source: https://www.nuget.org/packages/Microsoft.Windows.SDK.Contracts
• Version: 10.0.26100.1742

The Windows.winmd file was created by merging the .winmd files from the last nuget package as follows:

mdmerge -o out -i . -n 1

As with everything else in this repo, the .winmd files in this folder are licensed via MIT or Apache-2.0.