Topic Last Modified: 2015-03-09

Modifies the settings for a trusted application. This cmdlet was introduced in Lync Server 2010.

Set-CsTrustedApplication [-Identity <ExternalApplicationIdentity>] [-Confirm [<SwitchParameter>]] [-Force <SwitchParameter>] [-Port <Int32>] [-WhatIf [<SwitchParameter>]]

This example modifies the port for the trusted application with the Identity to port 6200. This is accomplished by passing the Set-CsTrustedApplication cmdlet an Identity of This Identity consists of the name of the pool on which the application resides followed by the name (or ID) of the application. We then include the Port parameter, giving it a value of 6200 to modify that value.

Set-CsTrustedApplication -Identity -Port 6200

A trusted application is an application developed by a third party that is given trusted status to run as part of Skype for Business Server 2015 but that is not a built-in part of the product. This cmdlet allows you to modify the port number that the external service that runs the application is using.

When you use this cmdlet to modify a trusted application, you must supply a value for the Identity parameter. The Identity is the fully qualified domain name (FQDN) of the pool on which the application is homed followed by a slash (/) followed by the application ID. For example,, where is the pool FQDN and tapp2 is the application ID. Note that if you view an existing application by calling the Get-CsTrustedApplication cmdlet, you’ll see an ID that looks more like this: Notice the prefix urn:application: before the application name (tapp2). While this prefix is part of the Identity, it’s not required when you specify the value for the Identity parameter.


Parameter Required Type Description




Prompts you for confirmation before executing the command.




Suppresses any confirmation prompts that would otherwise be displayed before making changes.




The unique identifier of the trusted application you want to modify. Identity values must be entered in the format <pool FQDN>/<application ID>, where pool FQDN is the FQDN of the pool on which the application resides, and application ID is the name of the application.




The port number on which the application will run.




Describes what would happen if you executed the command without actually executing the command.

Microsoft.Rtc.Management.Xds.DisplayTrustedApplication object. Accepts pipelined input of trusted application objects.

This cmdlet does not return a value. It modifies an object of type Microsoft.Rtc.Management.Xds.DisplayTrustedApplication.