Using small loader clip for detection

I’ve been using SWFObject for a long time, but lately I’ve become worried about these IE7 bugs that are causing issues with SWF’s using javascript based detection. My current workaround is going to be to just push the content to IE7 users, and use a second detection script in my loader SWF (which loads my main SWF).

Can I use express install with this method? I’d assume I can simply load the express install swf into my loader SWF if they fail detection. Does it work OK like that? Does anyone have experience with this.