Look for this file:

"C:\Program Files\Internet Explorer\iexplore.exe"

---
Leonard Grey
Errare humanum est

You may have a horked (dirty; bad; flawed) install of IE7.  I suggest that
you...

1. Uninstall IE7 (which automatically returns you to IE6) EXACTLY per
http://www.ie-vista.com/kbase2.html [Only use the Command
%windir%\ie7\spuninst\spuninst.exe if you cannot uninstall via Add/Remove
Programs!]

2a. Uninstall all toolbars and third-party Windows Themes (including Window
Blinds).

2b. Disable all Norton Add-ons, if applicable.

3. Reinstall IE7 EXACTLY per
http://www.ie-vista.com/known_issues.html#pre-install <= Steps #1-8, #10 &
#11; take note of #12, then STOP!

NB: Use http://www.microsoft.com/windows/downloads/default.mspx as the
installation source, not Automatic/Windows Update.

Or Direct Download link:
http://www.microsoft.com/downloads/details.aspx?familyid=9ae91ebe-3385-447c-8a30
-081805b2f90b

Tip: Save the installer to your desktop, do not Run it.

4. IMMEDIATELY go to http://windowsupdate.microsoft.com and install any
critical updates offered.  If a "Root Certificates" update is listed in the
Optional category, you might install it, too, to take full advantage of
IE7's additional security.

Also see:

IEBlog : IE7 (Un)Installation and Anti-Malware Applications
http://blogs.msdn.com/ie/archive/2006/10/11/IE7-Installation-and-Anti_2D00_Malwa
re-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