Can't find the generated web service in Web service administration

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Hi experts,

I've created a web service from a RFC enabled function module according to the link http://help.sap.com/saphelp_nw04/helpdata/en/37/12dd95a22831469a2363d98b19506b/frameset.htm .But I can not find my service in Web Service Administration for SOAP Runtime (you can use T-Code WSADMIN to open it).I don't know why?Could you please help to resolve this question. By the way, my SAP system is ECC6,the kernel release is 700.

Thanks & best regards,

lv,zhi