This post is simply for knowledge. RSS 2011 home version. File Protection. Files defined are protected from virus and, therefore, can not be opened. supposition: I have made a Word.doc file, and a Notepad.txt file, and a photograph.jpg file, and have them defined in File Protection. The .doc file and .txt files canNOT be opened. The .jpg file can be opened for viewing only but can't be changed. My question: Why it is necessary to prohibit opening the .doc & .jpg files for protecting them from virus? Thank you.