I am in no way an expert. But a few words.
Yes, Sygate allows IE through webshield with no asking by default, same as all the known browsers. Because webshield is a browser local proxy.
But not other http traffic, not windows media player etc.
And you sure can restrict what browsers are filtered by webshield.
With me, IE is not allowed to use avast proxy, cause I don't use it, very often, and only on safe sites.
How to do it:
Go to webshield settings, Basic-tab, blank the 'Redirected HTTP ports' field.
Now NO browser is able to have webshield protection. And they don't also get past avast! webshield without asking using Sygate firewall.
To set a browser to use that protection proxy, an example is firefox:
http://www.avast.com/files/tutorials/ws_ffproxy.htmHere is for IE too:
http://www.avast.com/files/tutorials/ws_ieproxy.htmNormally anyways people allow the browsers they use to internet, without even ask setting in a firewall setting.
But as I use IE so seldom, i have it not to use Webshield, just cause it is integrated into windows so tightly