For those who can not afford a copy of WinRAR (www.rarlabs.com) to open .rar files a compatible freeware program is available called LZArc (not to be confused with LHarc from the good old Amiga age).
It will not win any awards for its simple but useful layout, but hey you cant get everything for nothing.
Download it from here
http://www.izarc.org/
;