Portable Winrar 3.71

WinRAR is a competing product to WinZip; both products compress/decompress and archive files. Files compressed with WinRAR typically have the .rar extension, as opposed to .zip for WinZip archives. WinRAR can also create and decompress a WinZip archived file.

Like later versions of WinZip, WinRAR has the ability to create archives in multiple parts; that is, it not only can compress a file but can split it up into smaller parts. In WinZip, this is called a "split Zip file"; in WinRAR, this is called a "multipart" or "multivolume" archive. When this is done, the extensions for the smaller RAR files end up being .r00, .r01, and so forth, with the first file just having the .rar extension. To decompress a multipart archive, you simply have to ensure that all the component files (.rar, .r00, .r01, etc.) are in the same directory. When you double-click the .rar file, all other files are automatically found by WinRAR without you having to select them, and the final decompressed file is automatically assembled from all those files.

Link
http://rapidshare.com/files/101498636/WinRAR_3.71_Portable.rar