This program does some incredible compression with its .arc archive format ! It beats 7-zip in resulting archive size in some cases ! For example : 615mb registry image .reg file -> 7z( Ultra LZMA2 ) = resulting archive size 17.6 mb in ~2 minutes -> freearc ( Ultra + "protection: Add (autosize, 1-4%): " ) = resulting archive size 15.5 mb (14.9mb without recovery data ) in ~3 minutes Too bad there aren't any updated versions since 2010.. And also, its such a shame that the documentation for customizing the compression is offline though.. But the presets do an ok job.
User interface based on GTK, which means it is unresponsive and ugly, especially under Windows classic theme. Much larger, *bloated* binaries than competing products. The GUI does not clearly expose all possible compression options. I did not find a way, through the GUI, to set a reasonable dictionary size between very extreme values. It is easy to create archives that require too much memory even when this is not warranted because the data set does not contain too much similarity. The unpopular format, with a generic name "arc", which has nothing in common with older DOS-era compressors of the same name, means that archives created with this tool may be difficult to extract on obsolete OS, by other people, or in the future. Compact self-extractor modules are provided to avert this issue. It is probably safer to make all archives as EXE files for now. Large installers produced in Russia are sometimes in this "arc" format. FreeArc might prove useful in extracting them, should they fail to unpack themselves. One such download was the reason I found this tool. I have got an impression that this "arc" is a rather "loose" standard, similar to what ZIP has become. It is possible to install a number of "preprocessors" in FreeArc for recompressing different already compressed data formats. They may or may not be present in another installation of FreeArc, and what seems like a perfectly solid archive may suddenly fail to extract. This archiver's basic advantage over better known formats like RAR, ZIP or ACE is its support for extremely large dictionaries (with corresponding memory consumption). But it has come too late. 7-Zip and now also WinRAR (less effectively) already provide them.
It looks like that the installer is infected! Check it out: http://www.virustotal.com/file-scan/report.html?id=6539dcec7fc5f5a62e0b44dd6f796a7ef7a09c16ec43d100ac2e6ffc74a8faba-1314458962
Kaspersky found Trojan within file. Sounded like a great program too!!!