Hi all, Although I've spent 3 nights already breaking my head over this, I still don't get it. Will someone please guide me in the right direction? Here's my situation: I have a Compaq Presario SR9xxx that has a COA for Windows XP Home. I've zeroed the harddrive and now would like to install the OS (XP Home SP3) using the key on the COA. I've used the OEMBios Tool so I have 4 SLP strings to work with; using one of the SLP strings, I've got the compressed OEMBios file set. I've been using as a guide Suicide Solution's sticky: "How To: Create Pro OEM SLP CD". All help/guidance certainly appreciated. Tks.