WinRAR introduces an original compression algorithm. It allows higher compression ratios than other PC archiving tools, especially
for executable files, object libraries, large text files, etc.
* WinRAR offers an optional compression algorithm highly optimized for multimedia data.
* WinRAR supports files and archives up to 9,223,372,036,854,775,807 bytes in size, about 9000PB. The number of archived files is unlimited for all practical purposes.
* WinRAR provides complete support for RAR and ZIP 2.0 archives and is able to unpack CAB, ARJ, LZH, TAR, GZ, ACE, UUE, BZ2, JAR, ISO, Z, 7Z archives.
* WinRAR supports NTFS file security and data streams.
* WinRAR offers both a classic interactive Windows interface and the command line interface.
* WinRAR provides functionality for creating a 'solid' archive, which can raise the compression ratio by 10% - 50% over more common methods, particularly when packing large numbers of small files.
* WinRAR offers the ability to create and change SFX archives using default and external SFX modules.
* WinRAR offers the ability to create a multi-volume archive as SFX.
* WinRAR offers a number of service functions, such as setting a password, adding archive and file comments. Even physically damaged archives may be repaired and an archive may be locked to prevent further changes. Authenticity information may be added for additional security and WinRAR will store information on the last update and name of the archive.