Use host specific attributes to generate asprox ID and ID_Key unique to host.

asprox_id.ps1

<#
.SYNOPSIS
    Generate asprox ID and ID_Key.
.DESCRIPTION
    Use host specific attributes to generate asprox ID and ID_Key unique to host.
.NOTES
    File Name      : asprox_id.ps1
    Author         : @herrcore
    Prerequisite   : PowerShell V2 over Vista and upper.
#>
$sUsername = [Environment]::UserName
$bUsername = [system.Text.Encoding]::UTF8.GetBytes($sUsername)


$objUser = New-Object System.Security.Principal.NTAccount($sUserName)
$strSID = $objUser.Translate([System.Security.Principal.SecurityIdentifier])
$bSid = New-Object 'byte[]' $strSID.BinaryLength
$strSID.GetBinaryForm($bSid,0)
    
if([IntPtr]::Size -eq 4){                        
    $key="hklm:\software\microsoft\windows nt\currentversion"
    $data = Get-ItemProperty -Path $key -Name "InstallDate"
    $bInstallDate = [System.BitConverter]::GetBytes($data.InstallDate)                       
}                        
Else{    
    #account for error in asprox wow64 reg key lookup                    
    $bInstallDate = [System.BitConverter]::GetBytes(0x0000)                        
}

$md5 = new-object -TypeName System.Security.Cryptography.MD5CryptoServiceProvider
$utf8 = new-object -TypeName System.Text.UTF8Encoding
$hash = [System.BitConverter]::ToString($md5.ComputeHash($bSid + $bInstallDate + $bUsername))
$Id = $hash -replace '-',''
$IdKey = $Id.Substring(0,8)

echo "ID: $Id"
echo "ID Key: $IdKey"