IIRC you're referring to the 'fake' archive files of Microsoft Office that started appearing on the net a few years ago: http://digg.com/software/Compress_500_MB_t...ng_KGB_Archiver http://digg.com/tech_news/Compress_MS_Offi...th_KGB_Archiver KGB Archiver is a legitamate program, but those files people upload are fakes and may have viruses etc inside.