Configuring MS4W and MapCache for use in OpenLayers 3

This was spawned by an MS4W user asking how to setup OpenLayers3 for an MS4W MapCache's WMS service (​thread), with the following incorrect Javascript code, which did not write tiles to MS4W's cache directory:

                        new ol.layer.Tile({
                        title: 'Chabahar',    
                        source: new ol.source.TileWMS({
                        url: 'http://localhost:100/cgi-bin/mapserv.exe?map=D:/WEB_GIS/code_test/wms/HTML5Application/public_html/chabahar.map&',
                        params: {
                                          'LAYERS': 'chabahar',
                                          'FORMAT': 'image/png',
                                          'TILED': true
                                     },
                        serverType: 'mapserver'
                                                       })
                                        })  ,

Step 1: Initialize MapCache Module

• follow all of the steps in MS4W's ​README to initialize the MapCache module
• confirm that tiles are being generated inside the folder: /ms4w/tmp/ms_tmp/cache/

Step 2: Install MS4W's OpenLayers3 Package

• if you haven't installed MS4W's OpenLayers 3 package (we'll use its sample WMS mapfile), please install it:
  • save the OpenLayers zip locally from: ​http://ms4w.com/download.html#applications-packaged-for-ms4w
  • extract its contents to the root of your MS4W installation
  • restart Apache: as Administrator, execute: /ms4w/apache-restart.bat

Step 3: Configure mapcache.xml