MSFT_SIPGroupExpansionSetting class

Communications Server 2007 Server SDK Documentation


Specifies settings of the Office Communications Server group expansion Web service.

The following syntax is simplified from Managed Object Format (MOF) code and includes all inherited properties. Properties are listed in alphabetic order, not MOF order.

class MSFT_SIPGroupExpansionSetting
  [key] string Backend;
  boolean EnableDLOperation;
  string ExternalDLExpansionWebURL;
  [key] string InstanceID;
  string InternalDLExpansionWebURL;
  uint32 MaxGroupSize;


This class does not define any methods.


The MSFT_SIPGroupExpansionSetting class has the following properties.

Data type: [key] string

Access type: Read-only

Must be empty when accessing data from Edge Server or Proxy Server roles. Required when accessing data from any role that belongs to a pool.

The computer name (either the FQDN or NetBIOS name) and SQL Server instance name of the Office Communications Server 2007, 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 EditionSQL_Instance_Name
Standard Edition(local)\rtc
Access Edge Server and Forwarding ProxyEmpty string
Data type: boolean

Access type: Read/Write

Required. Controls whether clients can query for distribution list (DL) expansion.

The default value is true when Web services for DL operations are set up.

The default value is true.

Data type: string

Access type: Read/Write

Optional. HTTPS URL for external DL expansion Web services.

Data type: [key] string

Access type: Read-only

Required. A GUID value that uniquely identifies an instance of this class.

The GUID must be encapsulated between the "{" and "}" braces; for example: "{01234567-0123-4567-89AB-CDEF01234567}".

Data type: string

Access type: Read/Write

Optional. HTTPS URL for internal DL expansion Web services.

Data type: uint32

Access type: Read/Write

Required. Specifies the maximum number of group members that are returned to the client.

If the group size is greater than this number, only the first set of members equal to this number are returned. For example, if the MaxGroupSize is 100, but the number of members in a group is 400, only the first 100 are returned.

The minimum value for this property is 1 and the maximum value is 1000.

The default value is 100.


This class gets and sets information at the following level(s): SQL.

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

Microsoft Office Communicator 2007 is limited to displaying no more than 100 members of a group, regardless of whether MaxGroupSize is set to a value greater than 100.

Instances of this class support the following interface methods:

  • Provider::EnumerateInstances();
  • Provider::GetObject();
  • Provider::PutInstance();

    Where PutInstance() supports the following flag(s):



Server: Installed on computers serving the following role(s): Administrative Tools Server, Front End Server, Web Components Server.
Namespace: Defined in \root\cimv2.

See Also

Communications Server WMI Reference

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