Register-PSSessionConfiguration

Register-PSSessionConfiguration [-AssemblyName] <string> [-ConfigurationTypeName] <string> [-ApplicationBase <string>] [-Name] <string> [-Force] [-MaximumReceivedDataSizePerCommandMB <double>] [-MaximumReceivedObjectSizeMB <double>] [-NoServiceRestart] [-ProcessorArchitecture <string>] [-SecurityDescriptorSDDL <string>] [-ShowSecurityDescriptorUI] [-StartupScript <string>] [-ThreadApartmentState {<STA> | <MTA> | <Unknown>}] [-ThreadOptions {<Default> | <UseNewThread> | <ReuseThread> | <UseCurrentThread>}] [-Confirm] [-WhatIf] [<CommonParameters>]

C:\PS>register-pssessionConfiguration -name NewShell -applicationBase c:\MyShells\ -assemblyName MyShell.dll -configurationTypeName MyClass

This command registers the NewShell session configuration. It uses the ApplicationName and ApplicationBase parameters to specify the location of the MyShell.dll file, which specifies the cmdlets and providers in the session configuration. It also uses the ConfigurationTypeName parameter to specify a new class that further configures the session.

To use this configuration, users would type "new-pssession -configurationname newshell".

C:\PS>register-pssessionConfiguration -name MaintenanceShell -startupScript c:\ps-test\Maintenance.ps1

This command registers the MaintenanceShell configuration on the local computer. The command uses the StartupScript parameter to specify the Maintenance.ps1 script.

When a user uses a New-PSSession command and selects the MaintenanceShell configuration, the Maintenance.ps1 script runs in the new session. The script can configure the session, including importing modules, adding Windows PowerShell snap-ins, and setting the execution policy for the session. If the script generates any errors, including non-terminating errors, the New-PSSession command fails.

C:\PS>$sddl = "O:NSG:BAD:P(A;;GA;;;BA)S:P(AU;FA;GA;;;WD)(AU;FA;SA;GWGX;;WD)"

C:\PS> register-pssessionconfiguration -name AdminShell -securityDescriptorSDDL $sddl -maximumReceivedObjectSizeMB 20 -startupScript c:\scripts\AdminShell.ps1

This example registers the AdminShell session configuration. 

The first command saves a custom SDDL in the $sddl variable. 

The second command registers the new shell. The command uses the SecurityDescritorSDDL parameter to specify the SDDL in the value of the $sddl variable and the MaximumReceivedObjectSizeMB parameter to increase the object size limit. It also uses the StartupScript parameter to specify a script that configures the session.

As an alternative to using the SecurityDescriptorSDDL parameter, you can use the ShowSecurityDescriptorUI parameter, which displays a property sheet that you can use to set permissions for the session configuration. When you click "OK" in the property sheet, the tool generates an SDDL for the session configuration.

C:\PS>$s = register-pssessionConfiguration -name MaintenanceShell -startupScript c:\ps-test\Maintenance.ps1

C:\PS> $s

   WSManConfig: Microsoft.WSMan.Management\WSMan::localhost\Plugin

Name                      Type                 Keys
----                      ----                 ----
MaintenanceShell          Container            {Name=MaintenanceShell}


C:\PS> $s.getType().fullname
TypeName: Microsoft.WSMan.Management.WSManConfigContainerElement


C:\PS> $s | format-list -property *

PSPath            : Microsoft.WSMan.Management\WSMan::localhost\Plugin\MaintenanceShell
PSParentPath      : Microsoft.WSMan.Management\WSMan::localhost\Plugin
PSChildName       : MaintenanceShell
PSDrive           : WSMan
PSProvider        : Microsoft.WSMan.Management\WSMan
PSIsContainer     : True
Keys              : {Name=MaintenanceShell}
Name              : MaintenanceShell
TypeNameOfElement : Container


C:\PS> dir wsman:\localhost\plugin

Name                      Type                 Keys
----                      ----                 ----
MaintenanceShell          Container            {Name=MaintenanceShell}
microsoft.powershell      Container            {Name=microsoft.powershell}
microsoft.powershell32    Container            {Name=microsoft.powershell32}


Description
-----------
This example shows that a Register-PSSessionConfiguration command returns a WSManConfigContainerElement. It also shows how to find the container elements in the WSMan: drive.

The first command uses the Register-PSSessionConfiguration cmdlet to register the MaintenanceShell configuration. It saves the object that the cmdlet returns in the $s variable.

The second command displays the contents of the $s variable. 

The third command uses the GetType method and its FullName property to display the type name of the object that Register-PSSessionConfiguration returns.

The fourth command uses the Format-List cmdlet to display all the properties of the object that Register-PSSessionConfiguration returns in a list. The PSPath property shows that the object is stored in a directory of the WSMan: drive.

The fifth command uses the Get-ChildItem cmdlet to display the items in the WSMan:\LocalHost\PlugIn path. These include the new MaintenanceShell configuration and the two default configurations that come with Windows PowerShell.

C:\PS>register-pssessionconfiguration -name WithProfile -startupScript add-profile.ps1

# Add-Profile.ps1

. c:\users\admin01\documents\windowspowershell\profile.ps1


Description
-----------
This command creates and registers the WithProfile session configuration on the local computer. The command uses the StartupScript parameter to direct Windows PowerShell to run the specified script in any session that uses the session configuration.

The content of the specified script, Add-Profile.ps1, is also displayed. The script contains a single command that uses dot sourcing to run the user's CurrentUserAllHosts profile in the current scope of the session.

For more information about profiles, see about_Profiles. For more information about dot sourcing, see about_Scopes.