Application state files
The .cache folder contains application state files that store information about the app's current state, such as folder paths that were recently used for the root folder and the currently used port number. These files are referenced by the app to restore the previous state when it is restarted. The files in the .cache folder are not intended to be modified by users, and doing so may cause unexpected behavior in the app.
If you need to change these values, use the app's user interface. If you need to reset the app's state, you can delete the settings folder.
The .cache folder is located in the settings folder, which is in the Local folder of the AppData directory; for example, C:\Users\<username>\AppData\Local\ESRI\ArcGISDocCenter\.cache where <username> is your Windows username.
Below is a list of the files in the .cache folder and their purposes.
The .port file
The .port file stores the port number that the app is currently using. This file is referenced by the app to ensure that it uses the same port number when it is restarted.
The rootFolderCache.json file
The rootFolderCache.json file stores the paths of recently used root folders. This file is referenced by the app to provide quick access to recently used root folders when changing the root folder location in the app's settings.