I think you might have to disable your AV program....
Crossposted to microsoft.public.internetexplorer.general
Sandi's Installation Tips <= FOLLOW THESE TIPS TO THE LETTER!
http://www.ie-vista.com/known_issues.html#pre-install
And I strongly recommend using
http://www.microsoft.com/windows/downloads/ie/getitnow.mspx as the
installation source, not Automatic/Windows Update.
Tip: Save the installer to your desktop, do not Run it.
Make *certain* that you check in at Windows Update immediately after
installing IE7 and install any critical updates offered. If Optional
Updates category offers Root Certificates update, I recommend installing it
to take full advantage of IE7's additional security.
IEBlog : IE7 Installation and Anti-Malware Applications
http://blogs.msdn.com/ie/archive/2006/10/11/IE7-Installation-and-Anti_2D00_Malware-Applications.aspx
What's New in Internet Explorer 7
http://msdn2.microsoft.com/en-us/library/ms649487.aspx
Release Notes
http://msdn2.microsoft.com/en-us/ie/Aa740486.aspx
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
AumHa VSOP & Admin http://aumha.net
DTS-L http://dts-l.net/