WinRAR is your all-in-one compression tool. It one of the oldest shareware file archiving utilities in the world, and arguably the most popular. It is best known for leading the innovation in compressing files with its faster performance and smaller archives. More importantly, it supports a lot more formats that its competition, such as RAR, ZIP, ARJ, CAB, TAR, ACE, GZip, UUE, ISO, BZIP2, and 7-ZIP. You can get the trial version on Win-RAR.com. But if you feel like buying already, make sure you use a WinRAR Coupon to enjoy discounts.