我从下面的链接中得到了解决方法

使用自定义SOAP标头对.NET Web服务进行身份验证 [ ^ ]

i have got solution from below link

Authenticate .NET Web Service with Custom SOAP Header[^]

Hi ,
go to your IIS Go to Authentication and enable windows authentication , Eright click on your web service and Edit permission choose security tab and ADD ISS_USERS
and dont forget to enable directory browsing .
Hope its help .