[void][System.Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic')
$result = [Microsoft.VisualBasic.Interaction]::MsgBox( `
    "Run Delete System32?", 'YesNoCancel,Question', "Title")

switch ($result) {
  'Yes' { "System32 has been deleted" }
  'No' { "Sorry to hear that" }
  'Cancel'	{ "Bye..." }
}







$a = new-object -comobject wscript.shell
$intAnswer = $a.popup("Do you want to delete these files?", `
    0, "Delete Files", 4)
If ($intAnswer -eq 6) {
  $a.popup("You answered yes. Good job.")
}
else {
  $a.popup("You answered no, so get rekt. ")
}






$msg = "Are you sure you want to kill process $process on computer $computername"
if ('Yes' -eq [System.Windows.Forms.MessageBox]::Show($msg, 'Warning', 'YesNo')) {
  #Do Stuff
}







Function Show-Msgbox {
  Param(
    [string]$message = $(Throw "You must specify a message"),
    [string]$button = "okonly",
    [string]$icon = "information",
    [string]$title = "Message Box"
  )

  # Buttons: OkOnly, OkCancel, AbortRetryIgnore, YesNoCancel, YesNo, RetryCancel
  # Icons: Critical, Question, Exclamation, Information

  [reflection.assembly]::loadwithpartialname("microsoft.visualbasic") | Out-Null

  [microsoft.visualbasic.interaction]::Msgbox($message, "$button,$icon", $title)

}





$rc = Show-Msgbox -message "Do you know what you're doing?" `
  -icon "exclamation" -button "YesNoCancel" -title "Hey $env:username!!"

Switch ($rc) {
  "Yes" { "I hope your resume is up to date." }
  "No" { "Wise move." }
  "cancel" { "When in doubt, punt." }
}






$missing = Get-NetAdapter | Select-Object -Property Name, InterfaceDescription, ifIndex
If ($missing -ne $null) {
  Write-Host 'Here are the missing file(s):'
  Echo $missing

  # Send pop up alert

  $missingWithNewlines = $([String]::Join(([Convert]::ToChar(10)).ToString(), $missing))

  $ButtonType = [System.Windows.MessageBoxButton]::OK

  $MessageboxTitle = “Please Process Files”

  $Messageboxbody = “
The following are missing:

$missingWithNewlines”

  $MessageIcon = [System.Windows.MessageBoxImage]::Warning

  [System.Windows.MessageBox]::Show($Messageboxbody, $MessageboxTitle, $ButtonType, $messageicon)

}
Else {

  Write-Host "Nothing missing"

}