Retrieving the COM class factory for component with CLSID error,pls help me

[orieni]

Hi,
I have writen a code to take snapshot of Internet Explorer. The code

works fine when run in the debug mode. But once I publish the site I
get the
following error for:

Retrieving the COM class factory for component with CLSID
{9BA05972-F6A8-11CF-A442-00A0C90A8F39} failed due to the following
error:
8007000e.

The statement the error is shown for is:
SHDocVw.ShellWindows shellWindows = new SHDocVw.ShellWindows();

Any help would be really appreciated
Thanks