How do applications on different operating system share files across different file systems?
Server Message Block | SMB wikipedia
Common Internet File System | CIFS
[MS-BRWS]: Common Internet File System (CIFS) Browser Protocol Specification msdn.microsoft.com
[MS-BRWS]: Common Internet File System (CIFS) Browser Protocol Specification Normative References msdn.microsoft.com
[MS-BRWS]: Common Internet File System (CIFS) Browser Protocol Specification Informative References msdn.microsoft.com