WinAce is an archiving program for Windows with its own "ACE" compressed archive format and built-in support for other common archive formats types such as ZIP, RAR and MS-CAB. There is a text-based version for DOS called Commandline ACE. They also offer a freeware (but not free software) command-line decompression (including listing and testing) program called Unace for Mac OS X and Linux. WinAce peaked in popularity around 2000, but since fallen in popularity to WinRAR and Windows' built-in Zip functionality[citation needed].
Beginning with version 2.65, WinAce is bundled with the WhenUadware program.
