The .vdir Files

Once you are done adding, editing and/or deleting paths, save this configuration by selecting 'File' - 'Save' in the main menu of the Filesystem Virtualization Editor. This configuration will be stored in a vdir file. The Filesystem Virtualization Editor allows you to create different vdir files to be used in your application.

 

Read more:

Creating File System Redirections
Testing the File System Virtualization
Implementing Virtualization in Your Application