hi tp, I'm happy with the wm11 codec slipstream, good stuff It's amazing to find that you could slim it down to 160 MB, I could only manage down to around 400 MB for my Win XP. On the subject of HFCLEANUP I'm having a minor issue. I use the Driver_DisplayAdapters.rdv and with 1.7.9 I got no issue, but with the 1.7.10 during the GUI install around T-36 I got prompted with a screen asking for msyuv.dll. I'm sure that msyuv.dl file is listed in the rdv so I shouldn't get that prompt. Can I try to re-enable your code on line 2912 - 2928, I don't mind longer waiting time for my slipstream. Cheers