How much will XP SP3 impact XP SP2?
Expect little and you won’t be disappointed. The XP SP3 evolution will happen mainly under the hood, in terms of performance, security, and stability. SP3 will make available in a single package all the security updates, hotfizes and out-of-band updates, along with only a few minor enhancements. Users will not be able to see any modifications in terms of the graphical user interface and functionality. The few extra features added will only superficially affect user experience.