Your application may be dealing with all different types of data files. These could be stock lists orders images pretty much anything your application can store. But consider the need to transfer these files from your device to your server. In most cases you will most likely want to use the File Transfer Protocol (FTP) since its been well established since 1985 and still going strong. The Sapphire FTP Function Library gives you the ability to add file transfers and directory management with an FTP server to your application. The Library is fully compatible with eVB VB.NET C# and Microsoft Windows and allows you to rapidly add FTP functionality to your application. The Sapphire FTP Function Library has a host of features that you can use within your application Such as opening and closing a session Uploading and Downloading files and full file and directory management amongst others. Royalty Free Licence. When you purchase a developers licence you are free to use the DLL in any number of your projects and deploy it to all the devices to your clients. Theres no need for royalties based on the scale of your project just a one off fee. You will also get 12 months email support and discounted upgrades for future developments.