After slipstreaming a Dell SP1a source with HFSLIP 1.7.8 and TommyP's set, I discovered I could not integrate Media Player with the WMP 11 Slipstreamer. While diagnosing the problem on the WMP Slipstreamer forum, we discovered that apparently TXTSETUP.SIF was not updated along with the Service Pack; pretty much all references within were to SP1. I inserted a previously created HP OEM CD that was updated from SP2 -> SP3 via HFSLIP, and its TXTSETUP.SLF looked correct. Therefore, either I'm doing something wrong, or HFSLIP isn't a fan of this particular Dell version. I tried the procedure several times, and I completely obliterated the existing folder structure before my final attempt. HFSLIP otherwise runs normally. It takes as long as it should to complete and doesn't output any errors that I can see. nLite recognizes the HFSLIP output as SP3, but I'm betting the image wouldn't install were I to burn to CD. Thanks for any suggestions. I attached HFSLIP.LOG in case it is of use. Referenced WMP 11 Slipstreamer thread: http://www.boooggy.org/forum/viewtopic.php?f=12&t=83 HFSLIP.zip