[donno]

Windows is is very similar, the differences are two the layer tarballs.

The file system appears in a Files sub-directory as there is a Hives sub-directory for containing the Windows Registry.

The other difference is there are two extra PAX headers within the tarball, MSWINDOWS.fileattr which is "32" for a regular file, and "16" for a directory and MSWINDOWS.rawsd which is a special encoding of the security descriptor, which you can think of it as the owner, group and permissions associated with the file (which their standard values can be seen from buildkit here: https://github.com/moby/buildkit/blob/22156ab20bcaea1a1466d2...)

I haven't looked into how to handle the Windows Registry aspect as in my exploration I was focused on simply adding a pre-built executable so I didn't need any registry entries created.

The other fun gotcha is to ensure the ENV section contain PATH set to c:\\Windows\\System32;c:\\Windows otherwise you would be unlikely to be able to run any Windows executable.

[stackskipton]

Registry is best handled with copy .reg file and CMD reg import blah.reg in Dockerfile