IIS下瀏覽指定文件（如：web.config）

具體步驟如下：

1、快捷鍵：Ctrl + R

2、輸入：%windir%\System32\inetsrv\config\applicationHost.config

3、注銷：fileExtensions節下的：<!--<add fileExtension=".config" allowed="false" /> --> 和 hiddenSegments 節下的<!-- <add segment="web.config" /> -->。具體如下：

 <requestFiltering>
  <fileExtensions allowUnlisted="true" applyToWebDAV="true">
                    <add fileExtension=".asa" allowed="false" />
                    <add fileExtension=".asax" allowed="false" />
                    <add fileExtension=".ascx" allowed="false" />
                    <add fileExtension=".master" allowed="false" />
                    <add fileExtension=".skin" allowed="false" />
                    <add fileExtension=".browser" allowed="false" />
                    <add fileExtension=".sitemap" allowed="false" />
                    <!--<add fileExtension=".config" allowed="false" /> -->
                    <add fileExtension=".cs" allowed="false" />
                    <add fileExtension=".csproj" allowed="false" />
                    <add fileExtension=".vb" allowed="false" />
                    <add fileExtension=".vbproj" allowed="false" />
                    <add fileExtension=".webinfo" allowed="false" />
                    <add fileExtension=".licx" allowed="false" />
                    <add fileExtension=".resx" allowed="false" />
                    <add fileExtension=".resources" allowed="false" />
                    <add fileExtension=".mdb" allowed="false" />
                    <add fileExtension=".vjsproj" allowed="false" />
                    <add fileExtension=".java" allowed="false" />
                    <add fileExtension=".jsl" allowed="false" />
                    <add fileExtension=".ldb" allowed="false" />
                    <add fileExtension=".dsdgm" allowed="false" />
                    <add fileExtension=".ssdgm" allowed="false" />
                    <add fileExtension=".lsad" allowed="false" />
                    <add fileExtension=".ssmap" allowed="false" />
                    <add fileExtension=".cd" allowed="false" />
                    <add fileExtension=".dsprototype" allowed="false" />
                    <add fileExtension=".lsaprototype" allowed="false" />
                    <add fileExtension=".sdm" allowed="false" />
                    <add fileExtension=".sdmDocument" allowed="false" />
                    <add fileExtension=".mdf" allowed="false" />
                    <add fileExtension=".ldf" allowed="false" />
                    <add fileExtension=".ad" allowed="false" />
                    <add fileExtension=".dd" allowed="false" />
                    <add fileExtension=".ldd" allowed="false" />
                    <add fileExtension=".sd" allowed="false" />
                    <add fileExtension=".adprototype" allowed="false" />
                    <add fileExtension=".lddprototype" allowed="false" />
                    <add fileExtension=".exclude" allowed="false" />
                    <add fileExtension=".refresh" allowed="false" />
                    <add fileExtension=".compiled" allowed="false" />
                    <add fileExtension=".msgx" allowed="false" />
                    <add fileExtension=".vsdisco" allowed="false" />
                    <add fileExtension=".rules" allowed="false" />
                </fileExtensions>
                <verbs allowUnlisted="true" applyToWebDAV="true" />
                <hiddenSegments applyToWebDAV="true">
                    <!-- <add segment="web.config" /> -->
                    <add segment="bin" />
                    <add segment="App_code" />
                    <add segment="App_GlobalResources" />
                    <add segment="App_LocalResources" />
                    <add segment="App_WebReferences" />
                    <add segment="App_Data" />
                    <add segment="App_Browsers" />
                </hiddenSegments>
            </requestFiltering>

4、點擊網站XXX，在右側的IIS欄里，雙擊MIME類型項，在新打開的對話框中右側（右擊）點擊添加，類型如：.config  MIME類型如：xml/txt

完畢后就可以瀏覽web.config了，瀏覽其他后綴步驟更簡單。。。