Disk permissions problems

Kentico CMS is able to perform most operations without writing to disk. However, there are situations when the web application needs to write to the disk for optimal operations or performance, such as importing/exporting a site or storing uploaded files in the files system (which is optional).

If you receive an error message from the system saying that the web application cannot write to disk, you need to grant the appropriate user account with Modify permissions on the whole web site.

User account of the web application

The web application runs under user account that depends on your environment:

1.	On Windows 7, the user account is the local IIS_USRS account by default.

2.	On Windows Vista or Server 2008, the user account is the local NETWORK SERVICE account by default.

3.	On Windows XP, the user account is the local ASPNET account (aspnet_wp) by default.

4.	On Windows 2003, the user account is the local account NT Authority\Network Service by default.

5.	If you're using Visual Studio's built-in web server, it is running under your account.

You can see the name of the user account under which the application runs in Site Manager -> Administration -> System dialog.

Choosing the component for directory operations

If you're running Kentico CMS under restricted trust level, you may need to use the managed component for directory operations (create/delete/rename directory). You can configure it by setting the following web.config parameter:

If you're running Kentico CMS on a shared hosting server, some providers require that you use the non-managed methods for directory operations:

Page url: http://devnet.kentico.com/docs/devguide/index.html?disk_permissions_problems.htm