MS Mobiles Servant is a freeware program that is a consumer of web services. What is "web service" ? It is a service available at some remote server in the Internet, that is accessible through HTTP protocol - the same as this one used in regular Internet browsers. Thanks to usage of the same protocol as Internet browsers, users donīt have to worry that some network port will be blocked, or that firewall will block the communication. However contrary to Internet browser, web service is not communicating with clients through displaying of home pages (consisting usually of HTML code), but is using XML - other format, that is more easily readable by software. So instead of loading big web pages, sometimes containing a lot of content that is of no interest to the users (banners, descriptions, navigation links, etc) a client program that communicates with the server hosting web service is transfering only minimal amount of data. It is particularly important for cell phones to transfer minimal amount of data because users, who use GPRS pay usually for the amount of transferred data. With .NET being pre-installed in Smartphone 2003, Microsoft allows for extremely easy creation of web services consuming software.
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