The steps are as follows:
1. Shortcut keys: Ctrl + R
2. Input:%windir%\system32\inetsrv\config\applicationhost.config
3, write-off: Fileextensions under the:<!--<add fileextension= ". config" allowed= "false"/> and hiddensegments -<add segment= "Web. config"/>--. Specific as follows:
<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"/>
<!--<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"/>
</requestFiltering>
4, click on the website xxx, in the right side of the IIS bar, double-click the MIME type entry, in the New Open dialog box to the right (right click) Click Add, type such as:. config MIME type such as: Xml/txt
After that, you can browse the Web. config, and it's easier to explore the other suffix steps ...
Browse for the specified file under IIS (for example: Web. config)