One of the things we often run into while working on AD RMS deployments is customers who want to protect documents in formats other than those that are natively supported by AD RMS--Outlook, Word, Excel, PowerPoint, InfoPath and XPS Viewer. Common asks include PDFs, graphics such as JPEGs, and Visio documents. There are third party solutions that can integrate with AD RMS to provide protections on additional document formats, but they represent additional expense and effort. For a customer with just a few other files that need protecting, bringing in a third party solution may not be worth it. Enter Microsoft's Generic File Protection Explorer.