.net 4.0中wcf在iis7中的配置过程

我的环境是：windows server 2008 datacenter + IIS7.0 + VS2010 RC

我用的是ms提供的sample，使用其提供的bat文件来设置环境的：bat内容如下：

@echo off
iisreset /stop
mkdir %SystemDrive%\inetpub\wwwroot\ServiceModelSamples\bin
VER | FINDSTR /c:" 6.0." >NUL
IF NOT ERRORLEVEL 1 (
    IF EXIST %windir%\system32\inetsrv\appcmd.exe (
        %windir%\system32\inetsrv\appcmd.exe add app /site.name:"Default Web Site" /path:/ServiceModelSamples /physicalPath:%systemdrive%\inetpub\wwwroot\ServiceModelSamples
    ) ELSE (
        Echo "Could not find %windir%\system32\inetsrv\appcmd.exe.  Please ensure IIS is installed.  See 'Internet Information Service (IIS) Hosting Instructions' in the WCF samples Setup Instructions."
    )
) ELSE (
    IF EXIST %SystemDrive%\inetpub\adminscripts\adsutil.vbs (
        cscript.exe %SystemDrive%\inetpub\adminscripts\adsutil.vbs CREATE w3svc/1/root/ServiceModelSamples "IIsWebVirtualDir"
        cscript.exe %SystemDrive%\inetpub\adminscripts\adsutil.vbs SET w3svc/1/root/ServiceModelSamples/Path %SystemDrive%\inetpub\wwwroot\ServiceModelSamples
        cscript.exe %SystemDrive%\inetpub\adminscripts\adsutil.vbs SET w3svc/1/root/ServiceModelSamples/AppRoot "w3svc/1/Root/ServiceModelSamples"
        cscript.exe %SystemDrive%\inetpub\adminscripts\adsutil.vbs APPCREATEPOOLPROC w3svc/1/root/ServiceModelSamples
    ) ELSE (
        Echo "Could not find %SystemDrive%\inetpub\adminscripts\adsutil.vbs.  Please ensure IIS is installed.  See 'Internet Information Service (IIS) Hosting Instructions' in the WCF samples Setup Instructions."
    )
   
)
iisreset /start

但是配置完成后，再浏览器中打开地址时却出现如下错误：折腾了好久，还是没搞定，如果有熟悉的请指教。

解决方法：

安装.Net FrameWork 3.5及其sp1

然后安装IIS7.0功能，相关功能如下图：