Hi, I rebuilt my PC (Win XP pro SP1), now I can not install Adminpak for 2000 server. I had it before. I get DHCP, WINS, ISA, Exchange, etc...in my snap in, but can not get active directory Users, domain, Sites, etc.. I have tried to remove & reinstall 9 times, each time I get the same result (the above error msg). Any suggestions? Thanks