Update How-to-run-things-locally.html

Add IIS section to teach users how to configure IIS to enable .fbx, .obj files download.

docs/manual/en/introduction/How-to-run-things-locally.html

@@ -121,7 +121,12 @@ ruby -r webrick -e "s = WEBrick::HTTPServer.new(:Port => 8000, :DocumentRoot =>
 					</li>
 				</ol>
 			</div>
-
+			<h3>IIS</h3>
+			<div>
+				<p>If you are using Microsoft IIS as web server. Please add a MIME type settings regarding .fbx externsion before loading.</p>
+				<code>File name externsion: fbx        MIME Type: text/plain</code>
+				<p>By default, IIS blocks .fbx, .obj files downloads. You have to configure IIS to enable these kind of files can be download.</p>
+			</div>
 			<p>
 				Other simple alternatives are [link:http://stackoverflow.com/q/12905426/24874 discussed here]
 				on Stack Overflow.