This SharePoint tutorial, we will discuss _Layouts and _Catalogs files in SharePoint 2013/2016. As soon as you install SharePoint, you might have noticed that there are some physical folders get creates under “C:\Program Files\Common Files\microsoft shared\Web Server Extensions”. Depending on the version of SharePoint you can see the folder with the names as 11 / 13 / 15/16.
In SharePoint there are 2 kinds of files we can see, they are:
Ghostable Files: These are the files get render from physical folders/path and can’t be editable by the user.
Ex: Site / List settings pages
Un-Ghostable: The files get loaded from the content database can be edited by the user at any point of time.
Ex: All the pages rendering from Site pages folder.
In this article, I would like to discuss in detail about a few important files rendering from _Layouts & _Catalogs folders.
SharePoint _Layouts and _catalogs files
1. To close the connection & Log-in as different User:
From SharePoint 2010 onwards Microsoft has disabled the option of log-in as a different user. To achieve this we can make use of file “/_layouts/15/closeConnection.aspx” to this file we can send the query string as login as a different user. The final URL to make use of this file is: