javascript如何调用自承载的WCF服务

Question

最近项目需要通过JS调用一个自承载的服务，参见了JavaScript调用WCFService方法,可是例子是用IIS承载的，有两个问题

1. 编写的时候需要加[WebInvoke]但是加上这个属性就得用.net framework 4,而win8自带的client profile就不行了;这个有别的方法吗？
2. 用了.net framework4之后继续编辑，我在添加了WCF Service编译出的DLL之后提示”未能加载文件或程序集",但是这个程序集在运行目录下啊

详细的app.config

<?xml version="1.0"?>
<configuration>
    <system.serviceModel>
        <behaviors>
            <serviceBehaviors>
                <behavior name="NewBehavior0">
                    <serviceMetadata httpGetEnabled="true" httpGetUrl="http://localhost:5021/JSDesktopService"/>
                </behavior>
            </serviceBehaviors>
        </behaviors>
        <bindings>
            <basicHttpBinding>
                <binding name="NewBinding0" />
            </basicHttpBinding>
            <customBinding>
                <binding name="JsonMapper">
                  <webMessageEncoding webContentTypeMapperType="JSWCFTest.JsonContentTypeMapper, JsonContentTypeMapper, Version=1.0.0.0"></webMessageEncoding>
                    <httpTransport manualAddressing="true" />
                </binding>
            </customBinding>
        </bindings>
        <services>
            <service behaviorConfiguration="NewBehavior0" name="JSWCFTest.JSDesktopService">
                <endpoint address="http://localhost:5021/JSDesktopService" binding="customBinding"
                    bindingConfiguration="JsonMapper" contract="JSWCFTest.IJSDesktopService" />
            </service>
        </services>
    </system.serviceModel>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>