Isso funcionou muito bem para mim, no powershell:
$sites = @()
$sites += "https://www.bbc.co.uk/radio4/programmes/schedules#on-now"
$sites += "https://www.bbc.co.uk/radio4extra/programmes/schedules#on-now"
$sites += "https://www.bbc.co.uk/iplayer/guide"
$sites += "http://192.168.1.33:1935"
foreach($site in $sites){
start-process chrome.exe $site
}