Rework/addition to the AddingTrustedSites.ps1 from Microsoft. Adds the specified IP ranges to trusted sites in Internet Explorer.

AddingTrustedRanges.ps1

#---------------------------------------------------------------------------------
# This script is an addition to the AddingTrustedRanges.ps1 script provided by Microsoft
#---------------------------------------------------------------------------------

#requires -version 2.0

<#
 	.SYNOPSIS
        The PowerShell script which can be used to add trusted IP ranges in Internet Explorer.
    .DESCRIPTION
        The PowerShell script which can be used to add trusted IP ranges in Internet Explorer.
    .PARAMETER  TrustedAddresses
		Spcifies the trusted ip addresses in Internet Explorer.
    .PARAMETER  HTTP
		Once you use the HTTP switch parameter, the domain will be use the http:// prefix.
    .EXAMPLE
        C:\PS> C:\AddingTrustedRanges.ps1 -TrustedAddresses "192.168.1.1","192.168.1.2" -HTTP

		    Successfully added '192.168.1.1' and '192.168.1.2' domain to trusted sites in Internet Explorer.
#>
Param
(
    [Parameter(Mandatory=$true,ValueFromPipeline=$true,ParameterSetName="SingleDomain")]
    [Alias('Addresses')][ValidateNotNullOrEmpty()]
    [String[]]$TrustedAddresses,

    [Parameter(Mandatory=$false)]
    [Switch]$HTTP
)

#Initialize key variables
$UserRegPath = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Ranges"

#Figure out next range name
Function GetNextRangeName
{
  Param
  (
    [String]$KeyPath
  )

  $existingRanges = (Get-ChildItem -Path $KeyPath -Name).Count
  return "Range$($existingRanges + 1)"
}

#Main function
Function CreateKeyReg
{
    Param
    (
        [String]$KeyPath,
        [String]$Name
    )

    If(Test-Path -Path $KeyPath)
    {
        Write-Verbose "Creating a new key '$Name' under $KeyPath."
        New-Item -Path "$KeyPath" -ItemType File -Name "$Name" `
        -ErrorAction SilentlyContinue | Out-Null
    }
    Else
    {
        Write-Warning "The path '$KeyPath' not found."
    }
}

Function SetRegValues
{
    Param
    (
        [Boolean]$blnHTTP=$false,
        [String]$Address,
        [String]$RegPath
    )

    Try
    {
      $TrustedZone = 2
      If ($blnHTTP) { $protocol = 'http' } Else { $protocol = 'https' }
      Set-ItemProperty -Path $RegPath -Name $protocol -Value $TrustedZone `
      -ErrorAction SilentlyContinue | Out-Null
      Write-Verbose "Creating a Dword value named '$protocol.ToUpper()' and set the value to $TrustedZone."

      Set-ItemProperty -Path $RegPath -Name ":Range" -Value $Address `
      -ErrorAction SilentlyContinue | Out-Null
      Write-Verbose "Creating a string value named ':Range' and set the value to '$Address'."
    }
    Catch
    {
        Write-Host "Failed to add trusted sites in Internet Explorer." -BackgroundColor Red
    }

}

#Adding trusted sites in the registry
Foreach($TrustedAddress in $TrustedAddresses)
{
    $RangeName = GetNextRangeName -KeyPath $UserRegPath
    CreateKeyReg -KeyPath $UserRegPath -Name $RangeName
    $RangePath = "$UserRegPath\$RangeName"
    SetRegValues -RegPath $RangePath -Address $TrustedAddress -blnHTTP $HTTP
    Write-Host "Successfully added '$TrustedAddress' domain to trusted Sites in Internet Explorer."
}