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This article applies to: ML v7, ML8, MultiStore

Server Error in '/' Application. Unable to save config to file 'C:\.....\web.config'.

When trying to encrypt/decrypt the web.config file, an error similar to the one below is displayed:

Unable to save config to file 'C:\.......\web.config'.

The permissions of the .NET user account are not set right to allow access.

The .NET user account (typically ASPNET for WindowsXP or NETWORK SERVICE for Windows Server 2003/Vista or IIS_IUSRS for Windows Server 2008/Windows7) must be given read/write/modify access to the folder the web.config file resides in. This is typically the {root} folder. Remember to reset the permissions once the web.config file has been encrypted.