WinRar is most popular Compression Tool for Windows. This software is developed byRarLab and recently they have launched the newest version 4.0. This can be downloaded from CNET.
The extension range of Winrar 4.0 is quite sufficient for Advanced users also and can decompress RAR, ZIP, CAB, ARJ, LZH TAR, GZ, TAR.GZ, BZ2, TAR.BZ2, ACE UUE, JAR (Java Archive), ISO (CD Image),7Z and Z (Unix compress). On the other hand WinRAR can compress file and folders into two different extensions ZIP and RAR.
In WinRAR 4.0 you may experience 30% faster speed of decompression. It will depend on compression ratio and Data type. Their is also change in ISO support and now it has been upgraded to UDF 2.5, which will enable you to unpack Blu-ray ISO files.
WinRAR 4.0 is not compatible Windows NT, Windows Me, Windows 98 or older. The minimum OS requirement is Windows 2000.
The RAR achiever is now more easy to use if you regularly use same password. An additional feature to save a list of password is introduced in this version. You can organize Password by clicking “Organize Passwords” button. Complete list of features introduced and bug fixes is here
The latest version comes with more than 27 small and big changes compared to last version 3.93.
WinRAR is available for 32 bit and 64 bit platform in 27 different languages. Download Link