IIS – Error Using IISAdministration PowerShell Cmdlets on Windows 7

I need to use the new IISAdministration PowerShell cmdlets on Windows 7 to develop and debug scripts. Since this module does not exist on Windows 7 by default, I tried to install it. For this, I installed Windows Management Framework 5.1 on to make sure that I have PowerShell 5.1 with the PowerShellGet module available.

After that, I installed the IISAdministration module using this command:

Install-Module -Name IISAdministration

It does not report any errors, but when I try to list the available modules, it does not show any cmdlets installed:

PS D:\> get-module -ListAvailable


    Directory: C:\Program Files\WindowsPowerShell\Modules


ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Script     1.1.0.0    IISAdministration
Binary     1.0.0.1    PackageManagement                   {Find-Package, Get-Package, Get-PackageProvider, Get-Packa...
Script     1.0.0.1    PowerShellGet                       {Install-Module, Find-Module, Save-Module, Update-Module...}

I can see cmdlets in the ExportedCommands column when executing this command on my production Windows Server 2012 R2 machine.

When I try to import the module in a script or directly in the PowerShell console, I am getting this error:

PS D:\> Import-Module IISAdministration
Import-Module : Could not load type 'Microsoft.Web.Administration.SslFlags' from assembly
'Microsoft.Web.Administration, Version=7.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.
At line:1 char:1
+ Import-Module IISAdministration
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Import-Module], TypeLoadException
    + FullyQualifiedErrorId : System.TypeLoadException,Microsoft.PowerShell.Commands.ImportModuleCommand

What's wrong with my setup and how to fix it?