Enthusiast developer keeps Windows XP alive with unofficial 'Service Pack 4'

Windows XP users may now download a fourth service pack for the 13-year-old operating system, but it isn't coming from Microsoft. Instead, this Windows XP "SP4" comes from a single developer, who claims to have rolled up every official Microsoft update into an unofficial package. Windows XP Unofficial SP4 is now in its third beta, with work on a release candidate in progress. Though the first beta version arrived in September, Softpedia spread word of the latest unofficial service pack this week...