Publisher's description:

MirrorFolder is a backup software for automatic synchronization and real-time (RAID-1 type) mirroring of folder/drive from local to another local/network/removable drive.Key features:* Easy to setup, and runs automatically as service in the background using very little system resources.* Supports mirroring entire system drive to another internal hard disk drive in RAID-1 mode so that you can boot from the mirror drive without any lose of data in case the source drive fails.* It can mirror opened/locked database files, including Outlook PST file, in RAID-1 mirroring mode.* Supports real-time as well as periodic synchronization at the specified time/interval. It can also start synchronization automatically for removable drives when they are connected. It supports bi-directional synchronization option.* Supports automatic archiving of older versions of files from the mirror folder into ZIP files.* Supports copying NTFS alternate data stream, sparse file, junction/reparse point, symbolic link, file permissions, etc. It can also use NTFS Change Journal database for quick synchronization.* Supports exclusion/inclusion of sub-folders and file types from mirroring.* Supports command line options for setup, and extensive logging.MirrorFolder cost US $39.00 for a single computer license. Discount is available for purchasing two or more licenses. It can be ordered online at . A fully functional 30 days trial version is also available for download from this same web site.