File paths in Windows environment not case sensitive?

Question

Is it safe to assume that Windows local and network file paths are NOT case sensitive?

Answer 1

Yes. Windows (local) file systems, including NTFS, as well as FAT and variants, are case insensitive (normally). The underlying implementation of a network file system may be case sensitive, however, most software that allows Windows to access it (such as SMB) will automatically make case sensitive file systems appear as case insensitive to Windows.

For details, I'd read the section in the Wikipedia article on filenames.