The Open Geospatial Consortium (OGC) has published Web Map Service (WMS) specifications for serving and retrieving maps over the Internet in a common way. ArcGIS Server includes a WMS capability which, when enabled, makes a map service available to clients through these specifications. To find out how to publish a WMS service this way, see WMS services. You can view a list of the WMS services running on your server and their URLs in Manager: