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SectionInformation.ProtectSection Method

Marks a configuration section for protection.

Namespace:  System.Configuration
Assembly:  System.Configuration (in System.Configuration.dll)

public void ProtectSection(
	string protectionProvider


Type: System.String

The name of the protection provider to use.


The AllowLocation property is set to false.

- or -

The target section is already a protected data section.

The ProtectSection method marks the section for encryption so it will be written in encrypted form on disk.

The following protection providers are included by default:

For more information about protected configuration sections, see Encrypting Configuration Information Using Protected Configuration.

The following example shows how to use the ProtectSection method.

static public void ProtectSection()

    // Get the current configuration file.
    System.Configuration.Configuration config =

    // Get the section.
    UrlsSection section =

    // Protect (encrypt)the section.

    // Save the encrypted section.
    section.SectionInformation.ForceSave = true;


    // Display decrypted configuration  
    // section. Note, the system 
    // uses the Rsa provider to decrypt 
    // the section transparently.
    string sectionXml =

    Console.WriteLine("Decrypted section:");


Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0