Minimal language dependency for webservice client

Question

What is the simplest (setup wise) solution for a webservice client?
I need to make a lightweight app that will connect to and perform actions against a specific webservice server.

The main requirement is there request and response will be SOAP, there will be no libraries that need to be installed for this to run. It may be implemented in any language and should run on Windows only.

Answer 1

A webservice can get called using javascript, from an HTML page. Put it online, and provide the people with the URL, should be simple enough. Assuming people know you can enter a URL in a browser.