Invoke Command = Press Enter on an EXE

Hi there

I'm calling an exe via powershell using the Invoke command and i seem to get error one machine and not the other. The only difference i can see is the Program Files path

This works

Invoke-command -computername $server -ScriptBlock `

               { write-host "Server : $env:computername" 

   & "C:\Program Files\APPS\Desk Move Watch Service\DeskMoveWatchService.exe"

$wshell = New-Object -ComObject wscript.shell;

$wshell.AppActivate('Apps.Systems.DeskMoveWatchService')

Sleep 1

$wshell.SendKeys('~')

} -credential $cred -erroraction 'stop' 

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But this doesn't

Invoke-command -computername $server -ScriptBlock `

               { write-host "Server : $env:computername" 

   & "C:\Program Files (x86)\APPS\Desk Move Watch Service\DeskMoveWatchService.exe"

$wshell = New-Object -ComObject wscript.shell;

$wshell.AppActivate('Apps.Systems.DeskMoveWatchService')

Sleep 1

$wshell.SendKeys('~')

} -credential $cred -erroraction 'stop' 

Please could anyone share some advise