The .vreg Files

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

 

Read more:

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