web service???

[Leesen]

Hi, all I have create a new asp.net web service ,and I put the whole solution in the /wwwroot/webserive. In another window application, I use "add new web reference " to import the web service .I input "http://localhost/webservice/helloworld.asmx" in the address line,and then the system display a dialog to prompt me to download the helloworld.asmx file to my own local machine. So I want to know why? Could I only use the web service on the condition that I download it to my own machine? Your advaced help will be appreciated! Regards.