No you can't. You are reffering to a Microsoft Windows flaw in the JPEG engine that is used to render JPEG images. The only thing that this flaw can present a problem is that a specially crafted JPEG image could create a buffer over flow and execute remote code. It cannot install a virus. And the code that can be attached to it is limited to 1028 bytes. (1KB)... for this code to present any REAL problems, it would have be larger than 1KB in size. That said, never open attachments unless you specifically requested it or knew it was being sent from a known contact prior to opening it. Most people just randomly open attachments because there name was in the email. (can i say dumbass??)