How to extend the filesystem (Enterprise MFT only)

The regular file-system can be completely replaced or extended by one of your own design. When a virtual folder is associated with your extension, your code will be called by the server whenever a client performs file operations (e.g. reading, writing, directory-listing) in that folder.
For example, your extension may read from and write to a database instead of the Windows file system.
See file system extensions for more details.