For example if you make a text document, and right click and go into its properties you will see a summary page. Many applications use ADS to store attributes of a file in them.
Though ADS was created for compatibility with the Mac world, it is not solely used for that purpose. This hidden stream is used as the resource fork was used to tell the system how to use the data contained in the file. These extensions tell the operating system how to use the particular data found in the files.įor windows to be compatible with the Macintosh file system, they introduced alternate data streams. Windows does a similar thing through extensions such as. The data fork is where the data is actually contained and the resource fork is used to tell the operating system how to use the data portion. In brief, the Macintosh file system stores its data in two parts, the resource fork and the data fork. This 'feature' was implemented in order to allow compatibility with the Macintosh Hierarchical File System (HFS). Though not highly publicized, lack of this little known attribute of the Windows NTFS file system may affect how you solve a problem in the future.ĪDS were introduced into the Windows NTFS file system starting in Windows NT 3.1. Anyone who is in the security arena should know about Windows Alternate Data Streams, otherwise known as ADS.
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