j-i-m-s-t-e-r

#
# Check if Erlang is installed
#
$erlangkey = Get-ChildItem HKLM:\SOFTWARE\Wow6432Node\Ericsson\Erlang -ErrorAction SilentlyContinue
if ( $erlangkey -eq $null ) { 
	Write-Host "Erlang not found, need to install it"
	Start-Process -Wait otp_win64_R16B03.exe /S
}

#