Web.config files in SharePoint
web.config files are
contained in the following folders within the file system, I am giving A brief
explanation on which web. Config do what as per my experience.
1.
Local
Drive:\Inetpub\wwwroot — The web.config file of the top-level content
root folder that defines configuration settings for the virtual server of the
default Web site in the Windows SharePoint Services deployment. In addition,
the content root folder includes a \wpresources folder that contains a
web.config file used in Web Part resources.
2.
Local
Drive:\Program Files\Common
Files\Microsoft Shared\Web Server Extensions\wpresources — A web.config file that is used in Web Part
resources for the Global Assembly Cache (GAC).
3.
Local
Drive:\Program Files\Common
Files\Microsoft Shared\Web Server Extensions\12,14 or 15\CONFIG — The web.config file and other .config files
that together define configuration settings for extending other virtual
servers.
4.
Local
Drive:\Program Files\Common Files\Microsoft
Shared\Web Server Extensions\12,14 or 15\ISAPI — The web. Config file that defines configuration settings for
the /_vti_bin virtual directory.
5.
Local
Drive:\Program Files\Common
Files\Microsoft Shared\Web Server Extensions\12,14 or 15\TEMPLATE\LAYOUTS — The web. Config file that defines
configuration settings for the /_layouts virtual directory.
6.
Local
Drive:\Program Files\Common
Files\Microsoft Shared\Web Server Extensions\12,14 or 15\TEMPLATE\ADMIN\Locale_ID — The web. Config file that defines
configuration settings for pages used in SharePoint Central Administration.
When a virtual server
is extended with Windows SharePoint Services, a top-level web. Config file is
placed within the content root folder of the extended virtual server, which
defines configuration settings for the server such as HTTP handling for Web
Parts. Another web. Config file used for Web Part resources is placed in a
\wpresources folder within the same content root folder.
Important The web. Config files in the
\wpresources folders should not be modified. The settings of these files
disallow pages or items that can be compiled. If these settings are changed,
the security state for the compiled code will be very different from the
security state for code that runs from the Local Drive:\Inetpub\wwwroot
directory.
Please Comment if you need Any Help.Your Feed back is always Welcome.I Am Happy to Help !!!!!