ProNotion

Decide on a subdomain to use with ngrok. This makes the whole process easier.
Open up a Command Prompt in Administrator mode and run the following command to register the URL with HTTP.sys replacing "modernie" with your subdomain and ##### with your VisualStudio/IISExpress application's port.

netsh http add urlacl url=http://modernie.ngrok.com:##### user=everyone

Edit your applicationhost.config. The easiest way to is start up the site and right-click the IISExpress icon in the System Tray. Click "Show All Applications" and select your website running at localhost:#####. Click the path next to "Config" to open the file in an editor.
Search for you site's <bindings> configuration. The easiest way is to search for *:#####:localhost, which should bring you to the <bindings> section for your site. Edit them to include the following:

	PRINT 'Checking for existence of table ''countries'''

	/**** Object: Table [dbo].[Countries] Script Date: 11/09/2006 16:58:01 ****/
	if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Countries]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
	drop table [dbo].[Countries]

	PRINT 'Existing table ''countries'' dropped!'
	GO

	/**** Object: Table [dbo].[Countries] Script Date: 11/09/2006 16:58:01 ****/

	rem *********************************************************************
	rem This bat file will SETup a site in IIS Express, open a tunnel with ngrok and launch
	rem the site in the users default web browser
	rem
	rem tunnel.bat Path SiteName
	rem - Path The path to the root folder for the site
	rem - SiteName The name of the site to use for the tunnel and in IIS Express site
	rem ***********************************************************************

	@echo off