ASP.NET File Download problem
<p>In our application we often have a button that will perform a post back, get data, convert it into excel/PDF, and stream it to the client via Response.Write or Response.BinaryWrite.  This works perfectly fine when we are in a popup or not.</p>

<p>We just implemented a new feature that creates a msg file.  However, we are getting an error when streaming to the client (same code as before) - "Internet explorer cannot open this site".  We redirect to another page with a query string parameter stating which file to get the bytes for and stream it to the client.  </p>

<p>Has anyone experienced this before?  This feature works fine on the dev machines but in staging (Server 2003, IIS 6) it's broken and throwing this error</p>
