Open .doc file in browser using asp.net

Here is code.
string strPath = @"C:\sample.docx";

System.IO.FileInfo file = new System.IO.FileInfo(strPath);

if (file.Exists == true)
{
Response.Clear();
Response.AddHeader("content-disposition", "inline; filename=" + file.Name);
Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "application/doc";
Response.WriteFile(file.FullName);
Response.End();
Response.Flush();
}