FreeArc combines best 7-zip and RAR features: auto-selected LZMA/PPMD/Multimedia compression, 1gb dictionary, exe/dict/delta data filters, updatable solid archives, SFXes, recovery record, AES+Twofish+Serpent encryption, Linux support and much more...
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!!!