#not Tested

$certificate = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2("C:\Users\a.warme\Downloads\star.east-west.dk-2024-02-05\star.east-west.dk-2024-02-05.pfx","thales")
$store = New-Object System.Security.Cryptography.X509Certificates.X509Store("My", "LocalMachine")
$store.Open("ReadWrite")
$store.Add($certificate)
$store.Close()


$CertStore = New-Object System.Security.Cryptography.X509Certificates.X509Store("My", "LocalMachine")
$CertStore.Open("ReadOnly")

$Certificate = $CertStore.Certificates | Where-Object {$_.Subject -eq "CN=star.east-west.dk"}
$Base64 = [System.Convert]::ToBase64String($Certificate.Export([System.Security.Cryptography.X509Certificates.X509ContentType]::Cert))

Write-Output $Base64