Write Word Doc On The Fly
Response.AddHeader("Content-type", "application/vnd.openxmlformats-officedocument.wordprocessingml.document");
Response.AppendHeader("Content-disposition", "attachment; filename=Bio.docx");
Response.BinaryWrite(lawyerBio.MakeDoc());

Array
(
    [0] => HTTP/1.1 200 OK
    [1] => Cache-Control: no-cache, no-store
    [2] => Pragma: no-cache
    [3] => Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
    [4] => Expires: -1
    [5] => Server: Microsoft-IIS/7.5
    [6] => Set-Cookie: website#sc_wede=1; path=/
    [7] => Set-Cookie: website#lang=en; path=/
    [8] => Set-Cookie: ASP.NET_SessionId=zabhwz55brq0ebfyjqn1c3bm; path=/; HttpOnly
    [9] => Content-Disposition: attachment; filename=Bio.docx
    [10] => X-AspNet-Version: 2.0.50727
    [11] => Set-Cookie: SC_ANALYTICS_GLOBAL_COOKIE=323F079A90B545F39F8A6A9EB9B919DB; expires=Fri, 26-Oct-2012 17:44:57 GMT; path=/
    [12] => Set-Cookie: SC_ANALYTICS_SESSION_COOKIE=118B88825A054BA1BAF327B0561C3EBB,1; path=/
    [13] => X-Powered-By: ASP.NET
    [14] => Date: Thu, 27 Oct 2011 17:44:57 GMT
    [15] => Connection: close
    [16] => Content-Length: 169581
)

byte[] buffer = new byte[4096];
            using (Stream s = new FileStream(filePath, FileMode.Open, FileAccess.Read))
            {
                int bytes;
                while ((bytes = s.Read(buffer, 0, buffer.Length)) > 0)
                {
                    Response.OutputStream.Write(buffer, 0, bytes);
                }
            }
            Response.Flush();