Add-PsSnapin WebAdministration in Windows7 - powershell

Question

I want to use PowerShell to administer my IIS7 on Windows7 64 bits.
I try install IIS7 Powershell snap-in http://www.iis.net/download/PowerShell
I "Run as administrator", then typing the command listed below: msiexec /I iis7psprov_x64.msi but I get this error message: "The PowerShell snap-in is part of Windows Operating System. Please install via Programs and Features or Server Manager"
I think this particular feature is not necessary to load the WebAdministration module but I active all options in "Programs and features |
turn Windows features on or off | IIS | Web Management Tools | IIS Management Scripts and Tools
I do those checks:
1.) Power-Shell is installed
PS C:\Program Files\IIS> $Host.Version
Major Minor Build Revision
----- ----- ----- --------
2 0 -1 -1
PS C:\Program Files\IIS> $PSVersionTable
Name Value
---- -----
CLRVersion 2.0.50727.5448
BuildVersion 6.1.7601.17514
PSVersion 2.0
WSManStackVersion 2.0
PSCompatibleVersions {1.0, 2.0}
SerializationVersion 1.1.0.1
PSRemotingProtocolVersion 2.1
PS C:\Program Files\IIS> get-host
Name : ConsoleHost
Version : 2.0
InstanceId : 445ad8f5-87fc-48f7-b010-f7faf948b86c
UI : System.Management.Automation.Internal.Host.InternalHostUserInterface
CurrentCulture : es-ES
CurrentUICulture : es-ES
PrivateData : Microsoft.PowerShell.ConsoleHost+ConsoleColorProxy
IsRunspacePushed : False
Runspace : System.Management.Automation.Runspaces.LocalRunspace
2.) Set-ExecutionPolicy -ExecutionPolicy {Your Execution Policy}
PS C:\Program Files\IIS> get-ExecutionPolicy
Unrestricted
3.)Import-Module WebAdministration
PS C:\Program Files\IIS> Import-Module WebAdministration
PS C:\Program Files\IIS>
4.) C:\Windows\System32\WindowsPowerShell\v1.0\Modules\WebAdministration path exists
5.) Modules and Snap-in
PS C:\Program Files\IIS> get-module -listavailable
ModuleType Name ExportedCommands
---------- ---- ----------------
Manifest AppLocker {}
Manifest BitsTransfer {}
Manifest PSDiagnostics {}
Manifest TroubleshootingPack {}
Manifest WebAdministration {}
PS C:\Program Files\IIS> Get-PSSnapin -Registered
Name : SqlServerCmdletSnapin100
PSVersion : 2.0
Description : This is a PowerShell snap-in that includes various SQL Server cmdlets.
Name : SqlServerProviderSnapin100
PSVersion : 2.0
Description : SQL Server Provider
Name : TfsBPAPowerShellSnapIn
PSVersion : 2.0
Description : This is a PowerShell snap-in that includes Team Foundation Server cmdlets.
PS C:\Program Files\IIS> get-pssnapin
Name : Microsoft.PowerShell.Diagnostics
PSVersion : 2.0
Description : Este complemento de Windows PowerShell contiene cmdlets de Eventos de Windows y de contador de rendimient
o.
Name : Microsoft.WSMan.Management
PSVersion : 2.0
Description : Este complemento de Windows PowerShell contiene cmdlets (como Get-WSManInstance y Set-WSManInstance) que
usa el host de Windows PowerShell para administrar operaciones WSMan.
Name : Microsoft.PowerShell.Core
PSVersion : 2.0
Description : Este complemento de Windows PowerShell contiene cmdlets usados para administrar los componentes de Window
s PowerShell.
Name : Microsoft.PowerShell.Utility
PSVersion : 2.0
Description : Este complemento de Windows PowerShell contiene cmdlets de utilidad que sirven para manipular datos.
Name : Microsoft.PowerShell.Host
PSVersion : 2.0
Description : Este complemento de Windows PowerShell contiene cmdlets (como Start-Transcript y Stop-Transcript) proporc
ionados para su uso con el host de la consola de Windows PowerShell.
Name : Microsoft.PowerShell.Management
PSVersion : 2.0
Description : El complemento Windows PowerShell contiene cmdlets de administración para administrar los componentes de
Windows.
Name : Microsoft.PowerShell.Security
PSVersion : 2.0
Description : Este complemento de Windows PowerShell contiene varios cmdlets para la administración de la seguridad de
Windows PowerShell.
PS C:\Program Files\IIS> [System.Reflection.Assembly]::LoadFrom( "C:\windows\system32\inetsrv\Microsoft.Web.Administration.dll" )
GAC Version Location
--- ------- --------
True v2.0.50727 C:\Windows\assembly\GAC_MSIL\Microsoft.Web.Administration\7.0.0.0__31bf3856ad364e35\Microsoft....
PS C:\Program Files\IIS> (New-Object Microsoft.Web.Administration.ServerManager)
ApplicationDefaults : Microsoft.Web.Administration.ApplicationDefaults
ApplicationPoolDefaults : Microsoft.Web.Administration.ApplicationPoolDefaults
ApplicationPools : {DefaultAppPool}
SiteDefaults : Microsoft.Web.Administration.SiteDefaults
Sites : {Default Web Site}
VirtualDirectoryDefaults : Microsoft.Web.Administration.VirtualDirectoryDefaults
WorkerProcesses : {}
PS C:\Program Files\IIS> (New-Object Microsoft.Web.Administration.ServerManager).Sites
ApplicationDefaults : Microsoft.Web.Administration.ApplicationDefaults
Applications : {Default Web Site/}
Bindings : {[http] *:80:}
Id : 1
Limits : Microsoft.Web.Administration.SiteLimits
LogFile : Microsoft.Web.Administration.SiteLogFile
Name : Default Web Site
ServerAutoStart : True
State : Started
TraceFailedRequestsLogging : Microsoft.Web.Administration.SiteTraceFailedRequestsLogging
VirtualDirectoryDefaults : Microsoft.Web.Administration.VirtualDirectoryDefaults
Attributes : {name, id, serverAutoStart, state}
ChildElements : {bindings, limits, logFile, traceFailedRequestsLogging...}
ElementTagName : site
IsLocallyStored : True
Methods : {Start, Stop}
RawAttributes : {[name, Default Web Site], [id, 1], [serverAutoStart, True], [state, 1]}
Schema : Microsoft.Web.Administration.ConfigurationElementSchema
6.) I try in ps1 file
$succeeded = import-module WebAdministration
Write-Host $succeeded
if (($succeeded -ne $null) -and ($succeeded.GetType() -eq [System.Exception]))
{
#Could not import, trying to snapin
add-pssnapin WebAdministration
}
$succeeded is null, and "add-pssnapin WebAdministration" produces error message: Add-PSSnapin : The Windows PowerShell snap-in 'WebAdministration' is not installed on this machine.
PS C:\Program Files\IIS> Add-PSSnapin WebAdministration
Add-PSSnapin : El complemento WebAdministration de Windows PowerShell no está instalado en este equipo
En línea: 1 Carácter: 13
+ Add-PSSnapin <<<< WebAdministration
+ CategoryInfo : InvalidArgument: (WebAdministration:String) [Add-PSSnapin], PSArgum
+ FullyQualifiedErrorId : AddPSSnapInRead,Microsoft.PowerShell.Commands.AddPSSnapinCommand
any suggestions about it ? Why fails Add-PSSnapin WebAdministration ?
UPDATE:
I'm confused when exactly do I use Add-PSSnapin and when do I use Import-Module
http://social.technet.microsoft.com/Forums/en/ITCG/thread/3e1ca6e1-d197-4c04-a145-1e922814a618
surely, WebAdministration is only Module, and has'nt PSSnapin. May be...
References:
PowerShell IIS Snapin
Cannot install Powershell Snap-in
http://www.iis.net/download/PowerShell
http://learn.iis.net/page.aspx/429/installing-the-iis-powershell-snap-in/
http://learningpcs.blogspot.com.es/2010/08/powershell-iis-7-webadministration.html
Versión de PowerShell instalada
Determine installed PowerShell version

Answer 1

Here is the function I have in my profile.ps1 for loading the WebAdmin module. It covers IIS 7 and 7.5
# Web administration is loaded as a module on Windows 2008 R2 but as a set of snapins
# for Windows 2008 (not R2)
function Util-Load-Web-Administration
{
$ModuleName = "WebAdministration"
$ModuleLoaded = $false
$LoadAsSnapin = $false
if ($PSVersionTable.PSVersion.Major -ge 2)
{
if ((Get-Module -ListAvailable | ForEach-Object {$_.Name}) -contains $ModuleName)
{
Import-Module $ModuleName
if ((Get-Module | ForEach-Object {$_.Name}) -contains $ModuleName)
{ $ModuleLoaded = $true } else { $LoadAsSnapin = $true }
}
elseif ((Get-Module | ForEach-Object {$_.Name}) -contains $ModuleName)
{ $ModuleLoaded = $true } else { $LoadAsSnapin = $true }
}
else
{ $LoadAsSnapin = $true }
if ($LoadAsSnapin)
{
try
{
if ((Get-PSSnapin -Registered | ForEach-Object {$_.Name}) -contains $ModuleName)
{
if ((Get-PSSnapin -Name $ModuleName -ErrorAction SilentlyContinue) -eq $null)
{ Add-PSSnapin $ModuleName }
if ((Get-PSSnapin | ForEach-Object {$_.Name}) -contains $ModuleName)
{ $ModuleLoaded = $true }
}
elseif ((Get-PSSnapin | ForEach-Object {$_.Name}) -contains $ModuleName)
{ $ModuleLoaded = $true }
}
catch
{
Write-Error "`t`t$($MyInvocation.InvocationName): $_"
Exit
}
}
}