Export (0) Print
Expand All

ContextOptions Enumeration

Specifies the options that are used for binding to the server. The application can set multiple options that are linked with a bitwise OR operation.

This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

Namespace:  System.DirectoryServices.AccountManagement
Assembly:  System.DirectoryServices.AccountManagement (in System.DirectoryServices.AccountManagement.dll)

public enum ContextOptions

Member nameDescription
NegotiateThe client is authenticated by using either Kerberos or NTLM. When the user name and password are not provided, the Account Management API binds to the object by using the security context of the calling thread, which is either the security context of the user account under which the application is running or of the client user account that the calling thread represents.
SealingThe data is encrypted by using Kerberos.

This flag can only be used with the Negotiate context option and is not available with the simple bind option.

SecureSocketLayerThe channel is encrypted by using the Secure Sockets Layer (SSL). Active Directory requires that the Certificate Services be installed to support SSL.
ServerBindSpecify this flag when you use the domain context type if the application is binding to a specific server name.
SigningThe integrity of the data is verified. This flag can only be used with the Negotiate context option and is not available with the simple bind option.
SimpleBindThe client is authenticated by using the Basic authentication.

Caution   Communications may be sent over the Internet in clear text if the SecureSocketsLayer option is not specified with simple bind.

When the context options are not specified by the application, the Account Management API uses the following combination of options:

  • ContextOptions.Negotiate | ContextOptions.Signing | ContextOptions.Sealing

.NET Framework

Supported in: 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

© 2014 Microsoft