Apologies if this has been covered before but I couldn't find it anywhere. I've been having problems with ZoneAlarms causing my Browser (both ie7 and ie8) to run painfully slowly when virtualization was switched on in either "normal" mode or a Private Browser opened on my main machine. I got suspicicious when I noticed it worked fast on a much slower secondary machine.
Anyway after a bit of detective work it turns out that there is some sort of clash between the Virtulisation in Forcefield and a file loaded at startup called opware14.exe which is part of the ScanSoft Omnipage 14 package. Stopping this file from running at startup (Deleting from
registry under "HLKM\Software\Microsoft\Windows\CurrentVersi on\Run\&quot cures the problem and, oddly, so far appears to have no adverse effect upon Omnipage.
Just thought this might help others who might be struggling with the same problems.

Operating System:Windows XP Pro
Software Version:8.0
Product Name:ZoneAlarm Extreme Security