powershell - Send pop up message to specific RDP users who have not logged off -

i using function get-loggedonuser microsoft technet script center repository: get-loggedonuser

i'm invoking "msg" command (net send) on rdp server send pop message user has not logged out overnight.

i don't want broadcast message users on server; send notification individual users have been logged in since before midnight previous night.
want message show username , logon time , remind them log out.

$yesterday = [datetime]::today.tostring('m/d/yyyy hh:mm ')   $notloggedout = get-loggedonuser -computername computername | where-object {$_.logontime -lt $yesterday}   $script={param($command, $users, $computername, $logontime); write-host $command;  &cmd /c "$command"}  $command = foreach($user in $notloggedout){write-host "dear " $user.username "the system shows have been logged on since " $user.logontime "reminder: must log off @ end of everyday"}  invoke-command -computername computername -scriptblock $script -argumentlist $command 

$notloggedout shows 3 users should receive msg

username    computername     sessionname  id state  idletime  logontime              error --------    ------------    ------------  -- -----  --------  ------------           ----- user01       computername    rdp-tcp#0     1  active 5        7/30/2015 9:39       user02       computername    rdp-tcp#9     2  active 10       7/30/2015 8:46      user03       computername    rdp-tcp#2     2  active          7/30/2015 8:46  

user01 gets message.

but can't send message each user in foreach loop. user01.

i think way send arguments not right. should doing is: $script should script necessary send message users. -argumentlist should send $notloggedout variable. inside script part acesses $args[0].username (for first user , on).

try out. have rewritten code below, , works well. notice have commented out call get-loggedonuser , instead use static test data.

$midnight = [datetime]::today  $notloggedout = @(@{username = "jower";computername = "jowerwin81";logontime= [datetime]::now.adddays(-2)}, @{username = "jower";computername = "jowerwin81";logontime= [datetime]::now.adddays(-1)}) | where-object {$_.logontime -lt $midnight}  #get-loggedonuser -computername computername | where-object {$_.logontime -lt $midnight}   $script={     foreach($user in $args)     {         $mess = ("dear " +  $user.username + " system shows have been logged on since " + $user.logontime + " reminder: must log off @ end of everyday")         write-host $mess         & {msg $args.username /server:($args.computername) $args.message} -argumentlist @{username = $user.username;message=$mess}     } }  invoke-command -scriptblock $script -argumentlist $notloggedout