The ServerManager PowerShell module is primarily designed for Windows Server operating systems, not for client OS like Windows 7 Ultimate. When you attempt to run Import-Module ServerManager on Windows 7, PowerShell throws the error because this module isn't part of the default installation.

The command:

Dism.exe /Online /Enable-Feature /FeatureName:ServerManager-PSH-Cmdlets

fails because ServerManager-PSH-Cmdlets is a Windows Server feature that doesn't exist in Windows 7's feature set. This explains the "Feature name is unknown" error.

While you can't directly use the ServerManager module, here are alternative approaches:

Option 1: Remote Management

If you need to manage a Windows Server from your Windows 7 machine:

Enter-PSSession -ComputerName ServerName -Credential (Get-Credential)
Import-Module ServerManager

Option 2: Using Native Windows 7 Commands

For IIS management on Windows 7, use these instead:

# List installed Windows features
Get-WindowsOptionalFeature -Online

# Install IIS components
Enable-WindowsOptionalFeature -Online -FeatureName IIS-WebServerRole
Enable-WindowsOptionalFeature -Online -FeatureName IIS-ASPNET45

• Windows 7's PowerShell version (typically 2.0-5.1) may lack newer cmdlets
• Consider upgrading to at least PowerShell 5.1 for better feature support
• For production environments, management from a Windows Server system is recommended

To check available modules on your system:

Get-Module -ListAvailable

This helps identify what management options you actually have available.

The ServerManager PowerShell module is a Windows Server component that provides cmdlets for managing server roles and features. When attempting to run Import-Module ServerManager on Windows 7 Ultimate, you'll encounter the "module not found" error because:

• The module isn't included in Windows 7 client OS by design
• The DISM feature name ServerManager-PSH-Cmdlets is invalid for Windows 7

According to Microsoft documentation, ServerManager module is only available on:

- Windows Server 2008 R2 and later
- Windows Server 2008 (with Remote Server Administration Tools installed)

Option 1: Remote Management

Manage servers remotely from your Windows 7 machine:

$session = New-PSSession -ComputerName Server01 -Credential (Get-Credential)
Invoke-Command -Session $session -ScriptBlock {
    Import-Module ServerManager
    Get-WindowsFeature
}

Option 2: Install RSAT Tools

While not providing ServerManager module, RSAT gives some server management capabilities:

1. Download RSAT for Windows 7 from Microsoft
2. Install only the "Server Manager" component

Option 3: Alternative Cmdlets

For basic feature management, use these native Windows 7 commands:

# List available features
DISM /Online /Get-Features

# Enable a feature
DISM /Online /Enable-Feature /FeatureName:TFTP

Since you mentioned IIS7 problems, here's how to verify IIS installation state:

# Check installed IIS components
DISM /Online /Get-FeatureInfo /FeatureName:IIS-WebServer

# Repair IIS installation
DISM /Online /Cleanup-Image /RestoreHealth
Start-WindowsOptionalFeature -Online -FeatureName IIS-WebServer -LimitAccess -Source D:\sources\sxs

For comprehensive server management from Windows 7, consider upgrading to Windows 10 (which includes newer RSAT packages) or using remote PowerShell sessions to actual Windows Server instances.