One OS That Won't Die is Windows XP

Microsoft Corp. has had to create a new build of Windows XP Professional for computer makers because the six-year-old operating system's continued popularity has nearly exhausted the supply of product activation keys.
The new build, dubbed SP2c, includes no fixes or feature changes, but was created simply to address the shrinking pool of product keys. XP Pro SP2c, which has been released to manufacturing, will be made available to OEMs and system builders next month.
Since Windows XP Professional is so popular, it has become necessary to produce more product keys for system builders in order to support the continued availability of Windows XP Professional through the scheduled system builder channel end-of-life (EOL) date.
Microsoft has predicted continuing strong sales of Windows XP. Last month, the company's chief financial officer said that he tweaked the fiscal year 2008 forecast to account for XP's longevity. Rather than count on an 85/15 split in sales between Vista and XP, said Chris Liddell, Microsoft now expects a 78/22 split, an increase of nearly 50 percent in anticipated XP sales.