As you all know IE 7 is on beta and people have been browsing/using IE7 to find out the potential problems.
- Java Applets
- Adobe PDF
- Apple QuickTime
- Microsoft Windows Media Player
or any thing to do with <object> and <embed> tags
The list above which are Active X plug-ins for the browser need to be activated by the user in order to view the content. The cause for all of this is a lawsuit against Microsoft for automatically activating the Active X content on the IE browser. In 2004 Eolas won the lawsuit against Microsoft, and in-turn Microsoft want to prove what they have been doing is right, So the future version IE 7 will have Active X plug-ins work properly only upon users intervention. How sad it is, believe me as a developer, you need to tell a huge story to all your clients/boss and others why this damn thing doesn't work.
Meanwhile Microsoft has given a workaround here is the link
If you taken a look at the above link, you will know what kind of pathetic user experience a viewer will get and how the developer has go through these new concepts of embedding the Active X plug-in and activating them. Damn Eolas, Why do make life miserable.
If you need a better read the original Excerpt