Web Service Invoker is a tool that can help you to access and debug any web service.If you are web service developer, you can find WS Invoker useful to debug and test web service you developed. Also you can generate proxy sources for different .Net framework languages, this is convenient GUI front end for console "wsdl.exe" utility. Working with proxy generation under Visual Studio (in add-in mode) have additional benefit, you can select a project where generated sources will be automatically added. If you are web service consumer, you can use WS Invoker to request any web service. You do not need any other software to query any web service.