BeforeNavigate not triggered for HTTP 302 redirect in IE8

[toolbaruser]

Has anyone noticed a problem with BeforeNavigate not being triggered for HTTP 302 redirects in IE8? (works fine in IE7.)

Without going into too much detail, my company has purchased the C++ source code, to which we're adding our custom functionality, and so I'm building the IE toolbar from scratch using Visual Studio 2008. My toolbar needs to be able to intercept user's IE browser navigation events, and so I have my BeforeNavigate2() event handler. The user may click a link that results in (a series of) HTTP 302 redirects that end up taking the browser to a destination page. My toolbar (BevoreNavigate2() handler) needs to be able to intercept those intermediate 302 redirects as well.

Now, this is working fine in IE7. But in IE8, my BeforeNavigate2() is not triggered for HTTP 302 redirects.

I know this is a more general IE question, and not a question about the BestToolbars product. I was just hoping that maybe one of the fellow developers have noticed this problem with IE8. I've been looking high and low for an answer/solution, been talking to Microsoft Developer Support, but no success so far.

(Btw, I am aware about the vast differences between IE8 and IE7, e.g., muti-process model in the former vs. single-process in the latter. I've tried using a trick that forces IE8 into the single-process mode, but that didn't help.)

Thanks!