I tryed to register all dll's but this doesn't help. Anyway - try to go to systems32 make CMD command at made registration for all dll and OCX filez - write something like this: "for %i (*.dll) regserv32 /s %i" it sholud start reg all dll's I will try to install not separate XP SP2, but total Win XP corporate with SP2 rtm hope it will help.