Thanks for reading my message.. I need professional comments regarding our study to the file identification mechanism of Windows. As all of us know, Windows is using the file extension concept to identify files. I was thinking of "improving" this mechanism by identifying files according to their internal file properties such as their file signatures. I was hoping that anyone can help us with this by posting this message. Any form of comment (constructive or destructive) will be highly accomodated.Thank You...