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MSFT_SIPProxySecuritySetting class

Office 2003
Microsoft Office Live Communications Server 2005 with SP1


The MSFT_SIPProxySecuritySetting class defines the security provider and realm for the proxy service.

The following syntax is simplified from MOF code and includes all inherited properties.

class MSFT_SIPProxySecuritySetting
  [key] string Backend;
  string[] ClientToProxyAuth;
  boolean DefaultRealm;
  [key] string InstanceID;
  string Realm;


This class does not define any methods.


The MSFT_SIPProxySecuritySetting class has the following properties.

Data type: [key] string

The computer name (either the FQDN or NetBIOS name) and SQL Server instance name of the Microsoft® Office Live Communications Server 2005 with SP1, Back-End Database (configuration data is stored in the same SQL instance as user data, but in a different database). Indicates where this class is stored, which varies depending on the server role.

Server RoleAcceptable Values
Enterprise EditionBackend_FQDN\SQL_Instance_Name
Standard Edition(local)\rtc
Access Proxy and Proxy serversEmpty string

This property cannot be updated.

Data type: string[]

The security providers supported by the proxy. This array must contain one or more of the following string values. This property cannot be NULL.

"Kerberos"The Kerberos security provider is supported.
"NTLM"The NTLM security provider is supported.

The default value specifies both Kerberos and NTLM. This property can be updated.

Data type: boolean

If true, the realm for the supplied security credentials is the default one: "SIP Communications Service". If false, the realm is specified in the Realm property. The default value is true.

This property can be updated.

Data type: [key] string

A GUID value that uniquely identifies this proxy security setting. The GUID must be encapsulated between the "{" and "}" braces; for example: "{01234567-0123-4567-89AB-CDEF01234567}".

This property cannot be updated.

Data type: string

The realm these security credentials are accepted in. The realm must be the same for all servers in the Live Communications Server deployment. This property cannot be NULL if DefaultRealm is false. The default value is NULL.

This property can be updated.


Only one instance of this class can be present in the WMI.

Available actions for an instance of this class:

  • Creation: The administrator cannot create the instance of this class.
  • Updates: The administrator can update the instance of this class.
  • Deletion: The administrator cannot delete the instance of this class.


Server: Installed on Windows Server 2003 with Live Communications Server 2005 with SP1.
Namespace: Defined in \root\cimv2.

See Also

MSFT_SIPProxySetting, Live Communications Server WMI Reference

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