Install a .CER file on Windows with PowerShell
$S3BucketName="myinfrastructure"
$tDir = "C:\source"
$S3file="ip-0a901597.cloud.example.com.au.cer"
$Key="certificates/Prod/$S3file"
$targetPath="$tDir\$S3file"
Read-S3Object -BucketName $S3BucketName -Key $Key -file $targetPath
Import-Certificate -FilePath $targetPath -CertStoreLocation Cert:\LocalMachine\My