are you using any of the addon packs. i got the same error and that was because i was using one of the windows media player 11 addon available. once i removed that addon the error vanished. I used integrator with Xp SP2 Setup + 2.15a Update + Lots of addons. then use nLite to slimdown. Buff i have the error. then i removed addons 1 by 1 & then i cornered on windows media player 11 addon which solved my issue. may be this is of some help to u