# I have deleted the file in the back-end storage exposed by CBFS Connect. How do I notify the system about this?

Suppose you are exposing a custom file system using CBFS Connect and you (or another application) have deleted a file named "/path/to/filename.ext" from this back-end file system. Now, you need to inform CBFS Connect and the OS that the file is gone. This is done by calling the CBFSConnect.NotifyDirectoryChange method as follows:

NotifyDirectoryChange("\path\to\filename.ext", fanRemoved);