I am trying to install McAfee ePO 3.6.1 and VirusScan Enterprise 8.5 on my server running Windows Server 2003 SP2, but have been unable to do so. Every time I try, it hangs on the "installing MSDE 2000" section, and returns Windows error code 1601 with troubleshooting code 208, saying the windows installer service could not be accessed. So, after giving up on ePO for now, I tried to install VirusScan, because that is the more important application to us, but it also fails to install citing problems communicating with windows installer. This is exceedingly frusterating. Thanks in advance for your help.