Windows License Info

Get-WindowsLicenseInfo.ps1

<#
    .Synopsis
    Get the license status of a Windows computer

    .DESCRIPTION
    Gets the license details via SLMGR.vbs /dlv

    .EXAMPLE
    Get-WindowsLicenseInfo
    Returns the license details of the local computer

    .EXAMPLE
    Get-WindowsLicenseInfo -ComputerName computer01.domain.com
    Returns the license details of the computer
#>

Function Get-WindowsLicenseInfo {
    
    Param
    (
        [String] $ComputerName = $NULL,
        [PSCredential] $Credential = $NULL
    )
    
    Process {
        [ScriptBlock] $sbLicInfo = {
			((cscript $env:windir\System32\slmgr.vbs /dlv | Select-Object -Skip 4) -replace ': ', '=') | 
            ConvertFrom-StringData -ErrorAction SilentlyContinue
        }
        
        If ($ComputerName) {
            If ($Credential) {
                Invoke-Command -ScriptBlock $sbLicInfoName -Credential $Credential `
                    -Authentication Kerberos -ErrorAction SilentlyContinue
            }
            Else {
                Invoke-Command -ScriptBlock $sbLicInfoName -ErrorAction SilentlyContinue
            }
        }
        Else {
            Invoke-Command -ScriptBlock $sbLicInfo
        }
    }
}