How to avoid security message in IE7 when starting a file download?
<p>The message reads:</p>

<blockquote>
  <p>To help protect your security, Windows Internet Explorer blocked this site from 
  downloading files to your computer. Click here for more options... </p>
</blockquote>

<p>I am receiving this error when I try to initiate a download after successfully filling a CAPTCHA in my ASP.NET (C#) website. </p>

<p>Has anybody faced this issue earlier? If so can you please let me know how you have tried to make it work. I have no option to remove the AJAX calls in my code. </p>

<p>This issue seems to be specific to IE7. The work around suggested for this issue by Microsoft is:</p>

<blockquote>
  <p>To ensure that your Web site downloads are not blocked, do not automatically launch a file download. Instead, use hyperlinks or buttons that require a user action. If you use a script to navigate to the resource, it must run synchronously within the context of the OnClick event handler for the link.</p>
</blockquote>

<p>I even tried to create a button dynamically and trigger a click after my AJAX call is completed. Even then the issue is not resolved.</p>
