Are you a C Programmer and want to use a un-RAR utility in your program? Then Unique RAR File Library 0.4 is exactly what you asked for. The Unique RAR File Library, based on the free unrar source code by Eugene Roshal, the author of RAR and WinRAR, is a platform-independent, small, and fast static library for decompressing RAR files (RAR archives created with WinRAR 2.9). Unique RAR File Library 0.4 has full RAR 2.0 file format support of all compression methods, including multimedia compression; and listing and encoding is available without any DLL. It is designed to be used in games, demos, intros, and cross-platform applications. However this utility can not be used to create RAR archives.
Written in ANSI C, it supports multiple operating systems such as Win32, WinCE, Linux, UNIX, SunOS, OS/2, and others.