>>You can't, I believe. MS had to change the way ActiveX controls are implemented and displayed in IE, due to a patent infringement case that they lost.
>>
>>http://support.microsoft.com/kb/912945
>>
>>Essentially, it is up to the website owner to change they way they link/embed the rich media on their page to prevent that message. It occurs with Flash, etc...pretty much any of the rich media plug-ins.
>
>Even if I accept it, the next time I load the page, I have to click on it again. This is really irritating.
>
>The content generated for those Flash are, I believe, pretty much standard. I don't know how much more I can generate it so IE will stop complaining. If we cannot use Flash anymore on Web site, this will change a lot about many things we have been doing.


Yes, it is quite bothersome. Again, it's how IE loads the page now that's causing this. It can only be fixed on the page.

Have a look at this site. Loading the flash file using Javascript gets rid of the issue, for Flash at least.

http://blog.deconcept.com/swfobject/