Hey there, We're working on a shader pipeline on windows and are making use of the metal developer tools on windows. We're trying to generate a companion file based on this guide here: https://developer.apple.com/documentation/metal/libraries/generating_and_loading_a_metal_library_symbol_file Currently running the following commands on windows produces an error, while the exact same counterpart on macos using xcrun end up working. metal.exe -std=ios-metal2.1 -mios-version-min=11.0 -c -frecord-sources -o test.air test.metal metal.exe -std=ios-metal2.1 -mios-version-min=11.0 -frecord-sources -o test.metallib test.air metal-dsymutil.exe --flat --remove-source test.metallib the last command produces the following error warning: 'test.metallib' architecture air64_v21 does not support a companion MetalLib; copying verbatim error: cannot write 'test.metallib': The system cannot move the file to a different disk drive.