Parameters

Lync Server 2010 gives administrators considerable leeway when it comes to specifying the client software (and, equally important, the version number of that software) that users can use to log on to the system. For example, there is no technical reason that requires users to log on to Lync Server 2010 by using Microsoft Lync 2010; from a technical standpoint, there is nothing to prevent people from logging on by using Microsoft Office Communicator 2007 R2.

However, there might be some non-technical reasons why you would prefer that your users do not log on by using Office Communicator 2007 R2. For example, Office Communicator 2007 R2 does not support all of the features and capabilities found in Lync 2010; as a result, users who log on with Office Communicator 2007 R2 will have a different experience than users who log on by using Lync 2010. This can create difficulties for your users; it can also create difficulties for help desk personnel, who must provide support for a number of different client applications.

If this could be a problem for your organization you can employ client version filtering in order to specify which client applications can be used to log on to Lync Server 2010. When you install Lync Server 2010, a global set of client version configuration settings is installed and enabled. In addition to the global settings, client version configuration settings can also be applied at the site scope.

Any site settings you create can later be deleted by using the Remove-CsClientVersionConfiguration cmdlet. Note that you can also run Remove-CsClientVersionConfiguration against the global settings. In that case, the global settings will not be removed; instead, the global properties will be reset to their default values.

Who can run this cmdlet: By default, members of the following groups are authorized to run the Remove-CsClientVersionConfiguration cmdlet locally: RTCUniversalServerAdmins. To return a list of all the role-based access control (RBAC) roles this cmdlet has been assigned to (including any custom RBAC roles you have created yourself), run the following command from the Windows PowerShell prompt:

Get-CsAdminRole | Where-Object {$_.Cmdlets –match "Remove-CsClientVersionConfiguration"}

Microsoft.Rtc.Management.WritableConfig.Policy.ClientVersion.ClientVersionConfiguration object. Remove-CsClientVersionConfiguration accepts pipelined instances of the client version configuration object.

None. Instead, the cmdlet deletes instances of the Microsoft.Rtc.Management.WritableConfig.Policy.ClientVersion.ClientVersionConfiguration object.

-------------------------- Example 1 ------------------------

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Remove-CsClientVersionConfiguration -Identity site:Redmond

The command shown in Example 1 deletes the client version configuration settings that have the Identity "site:Redmond".

-------------------------- Example 2 ------------------------

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Get-CsClientVersionConfiguration -Filter site:* | Remove-CsClientVersionConfiguration

In Example 2 all the client version configuration settings that have been applied at the site scope are deleted. To accomplish this task the command first calls Get-CsClientVersionConfiguration and the Filter parameter; the filter value "site:*" ensures that only client version configuration settings that have an Identity beginning with the string value "site:" will be returned. This filtered collection is then piped to Remove-CsClientVersionConfiguration, which deletes each item in the collection.

-------------------------- Example 3 ------------------------

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Get-CsClientVersionConfiguration | Where-Object {$_.Enabled -eq $False} | Remove-CsClientVersionConfiguration

In the preceding command, all the client version configuration settings that are currently disabled are deleted. To do this, the command first uses Get-CsClientVersionConfiguration to return a collection of all the client version configuration settings currently in use in the organization. After this data is returned, the collection is piped to the Where-Object cmdlet, which picks out only those settings where the Enabled property is equal to False. From there, the filtered collection is piped to Remove-CsClientVersionConfiguration, which deletes each item in the collection.

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