Some more win32 file naming quirks to deal with: https://learn.microsoft.com/en-us/troubleshoot/windows-client/shell-experience/file-folder-name-whitespace-characters
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Some more win32 file naming quirks to deal with: https://learn.microsoft.com/en-us/troubleshoot/windows-client/shell-experience/file-folder-name-whitespace-characters (edit: I don't think these apply to the API level - they're just rules applied when the user enters filenames in the windows shell/file explorer.)