FDF file not opening in IE 8 with Adobe reader 9 or Adobe pro 9

Question

Hi
I have a fdf file that is  working fine with IE 7 when I am using adode reader 9 or pro. But the  same fdf is not working fine if my browser is IE 8 . The target element   for the fdf is a file that is there in our web server. The same FDF is also working fine in IE 8 if the version is reader used is 8 or lower
can any one help me to fix  this.
Thanks in Advance
RAVISH G

Answer 1

I will add a "Me too" onto this thread. I have to use a third-party site which sends an FDF document (over Internet Explorer), however Adobe Reader doesn't load inside this browser window, but rather launches itself *outside* of this browser window (in standalone mode, more or less)...
In fact, when Adobe Reader is loading outside the browser window the only thing I have here is the original PDF document where the data should be added on. The PDF file is actually a form but I have it displayed "blank", that is without any user-provided data. On Internet Explorer's point of view, I only have the "PDF File" icon in the center of my window, but nothing else (all white)
Here are the specs:
Toshiba Satellite laptop
Windows Vista Home Premium, all patched
Latest Adobe Reader available when typing this reply (9.3)
I have: 
Uninstalled, reinstalled Adobe Reader, but nothing better happens (Adobe Reader just pops out of the browser to display the original PDF file)
Upgraded to Internet Explorer 8 (as I was running IE7 on this PC), also added the URL of the intranet site in question in my "trusted sites" in IESpeaking of Internet Explorer, I also did a "reset to default values" many times over this process
Double-checked the values in the Windows Registry in HKEY_CLASSES_ROOT to see that both FDF and PDFs are gonna be executed on Adobe Reader (I have no other PDF readers or writers installed anyway)
Double-checked that the Activex control that is needed to be run so Adobe Reader can start is actually whitelisted in Microsoft's IE registry, more on this here
Ensured that Edit, Preferences, Internet, "Display in the browser" is in fact checked. I did the extra mile here: I unchecked, pressed OK, left Adobe Reader then came back to enable it again just in case something doesnt get written accordingly to those settings in the UI.
Now i'm out of clues
For what its worth, only internet explorer gives me this problem, Firefox and Chrome just opens Adobe Reader inside the browser with the FDF provided.