function Get-ZabbixAgentPackage {
<#
.Synopsis
   Downloads Zabbix Agent Package
.DESCRIPTION
   Downloads Zabbix Agent Package from a predefined URI for the Agent 2 from Zabbix CDN or your custom URI

   The file is saved to the $env:TEMP because it's always writeable

   Use Get-Help Get-ZabbixAgentPackage -Full to see the current hardcoded CDN URI

.EXAMPLE
# Just run with defaults and get a file object

$file = Get-ZabbixAgentPackage
$file


    Directory: C:\Users\dalek5439587\AppData\Local\Temp


Mode                 LastWriteTime         Length Name            
----                 -------------         ------ ----            
-a----        07.07.2023     13:34       13561856 ZabbixAgent2.msi
   



.EXAMPLE
# Specify some other URI and the resulting filename

$file = Get-ZabbixAgentPackage -SourceURI https://contoso.tld/zabbix_agent2.msi -FileName zabbixagent2-latest.msi
$file


    Directory: C:\Users\dalek5439587\AppData\Local\Temp


Mode                 LastWriteTime         Length Name            
----                 -------------         ------ ----            
-a----        07.07.2023     13:34       13561856 zabbixagent2-latest.msi

#>
[CmdletBinding()]

param (

    # Source URI, so you can override it with a later version or your custom distribution point
    $SourceURI = 'https://cdn.zabbix.com/zabbix/binaries/stable/7.0/latest/zabbix_agent2-7.0-latest-windows-amd64-openssl-static.zip',

    # File name for the downloaded file
    $FileName = 'ZabbixAgent2.zip'

    )

    function Enable-TransportLayerSecurity {
        param (
        $SecurityProtocol = [Net.SecurityProtocolType]::Tls12
        )

        # Get current one
        $currentProtocol = [Net.ServicePointManager]::SecurityProtocol

        # Stupid string comparison
        if ($currentProtocol -notcontains $SecurityProtocol) {
            
            # ADD the requested protocol to the current list
            Write-Verbose "Enabling Tls12"
            [Net.ServicePointManager]::SecurityProtocol = $currentProtocol -bor $SecurityProtocol

            }
        } # end Enable-TransportLayerSecurity


if ($SourceURI) {

    Enable-TransportLayerSecurity

    $outFile = Join-Path $env:TEMP $FileName
    
    'Downloading agent from {0} to {1}' -f $SourceURI, $outFile | Write-Verbose
    
    try {

        $file = Invoke-WebRequest -Uri $SourceURI -OutFile $outFile
        $file = Get-Item $outFile -ErrorAction Stop
        $file
        }

    catch {
    
        $err = @{
            Exception = 'ZabbixAgentPackageDownloadFailed' 
            Message =   'Agent download failed, aborting: {0}' -f $Error[0].Exception
            }
        Write-Error @err
        break

        }

    }

}