Prescan is end-of-life. Even if you could download it, it wouldn't work as it requires the V1 dat files which are no longer produced.
Oh right. I didnt realise that.
My problem is that I think I have a root kit infection on a server as when I start an On Demand scan a pop up appears saying "The On-Demand Scan found alterations to code or data which may indicate that a rootkit is attempting to hide files, registry keys, processes or other items. If this scan fails to find anything then the computer should be scanned with McAfee PreScan or booted into Safe Mode and this scan run again".
Do McAfee have a replacement for PreScan?????
I had the same trouble when I was attacked by Trojan.Agent/Gen-xxx and Patched-SYSFile.d trojans.
Use the possibility described in Mcafee Knowledge Base document KB67088 "How to Create a Windows XP Boot CD... etc.".
I think it is the best replacement for PreScan by now.