Powershell – Running Exchange Powershell script from a batch file: command doesn’t work. What’s wrong with the syntax

Coming from this question here: How to create a script for Exchange Powershell to modify settings for all shared mailboxes?

Here is my Powershell script (scroll right to see all):

$Mailboxes = Get-Mailbox -RecipientTypeDetails SharedMailbox

Foreach ($Mailbox in $Mailboxes) { 
    Set-Mailbox $Mailbox -MessageCopyForSentAsEnabled $True -MessageCopyForSendOnBehalfEnabled $True
    }

It works fine on its own if launched from an Exchange Management Shell window.

But I want to launch it from a batch file, so I found the following Microsoft page: https://technet.microsoft.com/en-us/library/bb123798%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396#RunScript

Following the guide there, I created this batch file (scroll right to see all):

PowerShell.exe -noexit -command ". 'C:\Program Files\Microsoft\Exchange Server\V15\bin\RemoteExchange.ps1'; Connect-ExchangeServer -auto; 'C:\Program Files\Microsoft\Exchange Server\V15\bin\enablesentforshared.ps1'"

One thing I added which was not specified in the instructions is single quotes around the full path to the script I want to run. Without the single quotes I was getting an error about C:\Program not being a recognized cmdlet or script.

Anyway, when I run this batch file, the terminal window opens, then changes to a Powershell window, and the path name to the script gets printed out to the screen, but it prints out BEFORE the [PS] prompt, and nothing actually gets executed.

This is what my Powershell window looks like after executing the batch file:

VERBOSE: Connecting to exchangeserver.domain.com
VERBOSE: Connected to exchangeserver.domain.com
C:\Program Files\Microsoft\Exchange Server\V15\bin\enablesentforshared.ps1
[PS] C:\Users\Admin.domain>

And there is no indication that the script has actually run.

So what have I got wrong here? I tried changing the . to a & based on some googling I did, but then that gives me an error about Connect-ExchangeServer being an unrecognized command, so I think the . is closer to being correct.