SOAP web services that accept primitive type arguments (string, int, etc.) can be tested from a web browser.
For security reasons this feature is disabled if the web browser runs on another machine. To enable testing the SOAP web services in the test environment from another machine add the following to the system.web section of the Web.config file:
<webServices> <protocols> <add name="HttpPost"/> <add name="HttpGet"/> </protocols> </webServices>