WinRAR

Eugene Roshal developed an application that can create RAR archives called WinRAR. It is a shareware file archiver and data compression utility released by Ron Dwight in 1993, while Alexander Roshal, Eugene Roshal's brother runs the business. WinRAR provides the complete support for RAR, which is WinRAR's original format in compression, ZIP archives, and unpacking of 7z, EXE, ISO, JAR, BZ2, UUE, ACE, GZ, TAR, LZH, ARJ and Z archives. It has multithreaded compression and can create archive with multi-volume and self-extracting. Damaged archives are provided with date redundancy through recovery record and recovery volumes for reconstruction. It also supports in the advancement in file names of Unicode and file system of NTFS. It has also AES (Advanced Encryption Standard) 128-bit key to be used optionally in archive encryption. The software is available in forty seven languages. It is written in C++ and runs with Windows 95, 98, Me, 2000, XP, Vista, 7 Mac OS X, FreeBSD, LInux (Wine required for GUI), and OS/2.

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StuffIt Deluxe 2009

StuffIt Deluxe is a file compression software used in compressing, securing, and sending files and enables sharing of large files, photos, and email online with file security and protection. Photos, music, and other documents can be shrunk without compromising its quality. It features SendStuffNow, a file transfer and storage service that can store up to 2 GB worth of files that can be shared through email invitations for downloading files. It also features SmartSend that can send large files through e-mail. The small files are automatically compressed then attached into a new email message, and larger files are uploaded into a secure website though the SendStuffNow.com, which permits access for downloading files from any location. The software supports plug-ins that allows direct access of StuffIt from any application such as Adobe Photoshop and Microsoft Office. StuffIt has an exclusive patent-pending technology that can compress any JPEG image without losing quality.The compressors of the software functions specifically for file targets like MP3s, PDFs, Microsoft Office documents, e-mails and presentations.

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PackIt

PackIt is a file compressor developed by Harry Chesley and it is software that’s meant to be used to archive and compress files in MAC operating systems. This file compressor is mainly associated with PIT files wherein PIT files refer to PackIt Compressed Archives. In other words, these files are the archives created by PackIt and they can only be opened and viewed on a MAC operating system. PackIt was also known as the first program widely used by MAC operating systems but quickly disappeared when StuffIt was introduced in 1987. However, there are latest versions of PackIt that were released such as PackIt 2 that comes with an added Huffman encoding feature as well as the PackIt 3 which is still a popular file compressor until today. PackIt is also known to be a reliable file compression utility for MAC OS when it comes to reducing file sizes for backup and for saving space on users’ hard drives.