WpfAdmin 2.0 support winxp sp3 ?
I haven't personally tried it, so it may not. Try our alternate (free) WfpReplace tool, it may work.
I know it has been a very long time since this was posted, and I hope I don't give anyone an unwanted "new post" notification. But in case someone else has the same question and searches here for an answer: I have used WfpAdmin 2.0 with WinXP SP3, and it works fine.
Of course, this is accomplished via API hooks to redirect reads on the host file by the host file to the new location of the overlay.