Hi, i am starting to use some powershell scripts and would like your help to adjust this script, i want to add a user to the admin group of a remote computer, the script already does it, however i would to change the way  i insert the user name and computer name, i dont know if it´s possible but the changes i wanna do is

when i run the script it will Popup a window asking the username and another one asking the computer
After the end of script popup a window saying "user added succesfully" or in case of error show the error message.

is this possible to be done?

$domain = "domain"
$strComputer = "computername"
$username = "username"

$computer = [ADSI]("WinNT://" + $strComputer + ",computer")
$computer.name

$Group = $computer.psbase.children.find("administrators")
$Group.name

{$members= $Group.psbase.invoke("Members") | %{$_.GetType().InvokeMember("Name", 'GetProperty', $null, $_, $null)}
$members}

$Group.Add("WinNT://" + $domain + "/" + $username)

$members = @($group.psbase.Invoke("Members"))
$members | foreach {$_.GetType().InvokeMember("Name", 'GetProperty', $null, $_, $null)}