Hi, One of my friends would like to pursue MCSE Win2k3 and comes up with this question. Should he choose Win2k Pro or WinXP for client requirements? He is using Win2k Pro at his work and users in his current company are using Win2k Pro as well. But the company can change/upgrade to WinXP and if he change the company, may be that company may be using WinXP. Who knows. Anyway, at this point in time, (since longhorn is a long time to come) would you suggest 210 (Win2K pro) or 270(WinXP) for his certification? Thanks in advance