Single File System is a native Delphi virtual file system archive / backup library with transparent compression and strong encryption. Single File System provides an easy way to work with multiple files and folders stored as a part of a single file with advanced compression and encryption functionality. This solution encapsulates small but powerful virtual file system within a single-file storage. The mechanism of Single File System includes some advanced features of FAT and NTFS file systems and is specially optimized to achieve high performance.