Microsofts Windows Server 2003 is gaining market steadily since its release. Netcraft says that, Comparing the sites which are now hosted on Windows 2003 with their operating system in December 2002 shows over 42% of these to be new sites, 43% (68K) to be upgrades from other Windows platforms (mainly Windows 2000), 5% (8K) to be migrations from Linux and 1% from other operating systems. But all is not rosy for Windows Server 2003 switchers. As The Register.co.uk reports Colt has had to reboot its Web site a significant number of times since shifting to Windows Server 2003, Prettejohn notes (colt.com's graph).