I'm curious... Looknstop download is less than a megabyte. Outpost Firewall is over 7 megabytes, and zone alarm about 5 megabytes. So, does the size of the program necessarily have any relationship to its power or ability to act as a strong and effective firewall? If they all basically do the same thing, and do it basically to the same degree, then what would account for the vast difference in sizes??