Alternate Data Streams (ADS) are part of the NTFS file system in Windows operating systems. They are not included in the FAT and FAT32 file systems. ADSs were originally included in NTFS to provide compatibility with the Macintosh File System. What is an ADS? Every file has a primary data stream called :$DATA. This stream contains the information we are used to seeing, such as the content of a word processor file or plain text document. The ADS is another data stream (file) which can be attached to the primary data stream (file). It contains information which is not typically