whitehorses - I used all types of 2k's, from FDV's, full up, NLITE'd and HFCLEANUP'd. I use the HFCLEANUP version because it removes more than NLITE and I get repeatable results. I need the IE core so FDV's fileset doesn't work for me. I do not use all of the HFCLEANUP reducers because I found that I can't run anything worthwhile when removing the 4Z reducers. Try HFCLEANUP without using the ZZZZ files. As far as the size goes, you are asking to compare apples to oranges. The final size depends on how much you are trying to slipstream via HFEXPERT. HFEXPERT adds stuff the installation disk. For example, I use HFCLEANUP, IE6, DX9C, HFEXPERT, HFExpert'd drivers, HFEXPERT'd ramdrive, HFEXPERT/Codecs, HFExpert/Appreplacement, HFExpert'd alternate wallpapers, etc. My source is 212 meg, my sourcess is 121 meg. IIRC, without drivers it was more like 100 meg. Remember, the HFCLEANUP was compiled for English. So if you are using a non-English version of 2k, you may have bad results. BTW, can you provide us with your hfslip.log file?