Even though you have a entry in browser-plugin section for the Google Chrome Frame, when I try to install the Google Chrom Frame standalone msi installer found here...
http://www.google.com/chromeframe/eula.html?msi=true
Sophos is blocking it and detecting it as Google Chrome browser. From my email notification...
File "C:\Program Files\Google\Update\Install\{A162139A-AA97-4DC8-8BAE-79FB94F308DE}\chrome_frame_installer.exe" of controlled application 'Google Chrome' (of type Internet browser) has been detected.
Please see that this is fixed as soon as possible.
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