If you upload and download binary files to and from newsgroups you can use this to generate a set of PAR files. If you miss one or more of the binary files when downloading, the PAR files can be used to restore the missing files. Furthermore, if the file set contains a RAR archive, the program automatically unpacks it. Other file types, like stuffit files, are automatically forwared to the appropriate program. The program cooperates with Loek Jehee's Split&Concat to automatically join a segmented file.