Update 8x8_Work_Updater.ps1

8x8_Work_Updater.ps1

@@ -1,8 +1,8 @@
 # ==============================================================================
 # Script Name: 8x8_Work_Updater.ps1
-# Description: Downloads 8x8 with a progress bar, pops up an interactive 
-#              unclosable countdown window (1-hour timer with "Update Now"), 
-#              silently installs 8x8, and launches the updated client.
+# Description: Downloads 8x8 with a progress bar, triggers a native service 
+#              notification modal dialog on the user screen (bypasses non-interactive 
+#              Session 0 blocks), silently installs, and relaunches 8x8.
 # ==============================================================================
 
 # Ensure script is running elevated
@@ -11,9 +11,8 @@ if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdenti
     exit 1
 }
 
-# Load required .NET assemblies
+# Load required assemblies
 Add-Type -AssemblyName System.Windows.Forms
-Add-Type -AssemblyName System.Drawing
 Add-Type -AssemblyName System.Net.Http
 
 $workDir       = "C:\ProgramData\JCT600_8x8Update"
@@ -64,90 +63,22 @@ try {
     }
 
     # --------------------------------------------------------------------------
-    # Step 2: Show Interactive JCT600 Dialog Form
+    # Step 2: Show ServiceNotification Dialog (Crosses Session 0 Isolation)
     # --------------------------------------------------------------------------
-    Write-Host "[2/4] Displaying interactive countdown dialog..." -ForegroundColor Cyan
+    Write-Host "[2/4] Displaying interactive notification on user desktop..." -ForegroundColor Cyan
 
-    [System.Windows.Forms.Application]::EnableVisualStyles()
+    $title   = "JCT600 IT Support — 8x8 Work Update"
+    $message = "An automatic update for 8x8 Work has been scheduled by IT Support.`n`nPlease save active work and wrap up ongoing calls.`n`nClick OK to proceed with the update."
 
-    $form = New-Object System.Windows.Forms.Form
-    $form.Text = "JCT600 IT Support — 8x8 Work Update"
-    $form.Size = New-Object System.Drawing.Size(460, 260)
-    $form.StartPosition = 'CenterScreen'
-    $form.FormBorderStyle = 'FixedDialog'
-    $form.MaximizeBox = $false
-    $form.MinimizeBox = $false
-    $form.ControlBox = $false
-    $form.TopMost = $true
-
-    $script:allowClose = $false
-    $form.Add_FormClosing({
-        param($sender, $e)
-        if (-not $script:allowClose) { $e.Cancel = $true }
-    })
-
-    $labelHeader = New-Object System.Windows.Forms.Label
-    $labelHeader.Text = "JCT600 — IT SUPPORT"
-    $labelHeader.Location = New-Object System.Drawing.Point(20, 15)
-    $labelHeader.Size = New-Object System.Drawing.Size(400, 25)
-    $labelHeader.Font = New-Object System.Drawing.Font("Segoe UI", 12, [System.Drawing.FontStyle]::Bold)
-    $labelHeader.ForeColor = [System.Drawing.Color]::Navy
-    $labelHeader.TextAlign = 'TopCenter'
-    $form.Controls.Add($labelHeader)
-
-    $labelMsg = New-Object System.Windows.Forms.Label
-    $labelMsg.Text = "An automatic update for 8x8 Work has been scheduled by IT Support.`nPlease save active work or click 'Update Now' to proceed."
-    $labelMsg.Location = New-Object System.Drawing.Point(20, 48)
-    $labelMsg.Size = New-Object System.Drawing.Size(400, 40)
-    $labelMsg.Font = New-Object System.Drawing.Font("Segoe UI", 9)
-    $labelMsg.TextAlign = 'TopCenter'
-    $form.Controls.Add($labelMsg)
-
-    $labelTimer = New-Object System.Windows.Forms.Label
-    $labelTimer.Location = New-Object System.Drawing.Point(20, 95)
-    $labelTimer.Size = New-Object System.Drawing.Size(400, 40)
-    $labelTimer.Font = New-Object System.Drawing.Font("Segoe UI", 20, [System.Drawing.FontStyle]::Bold)
-    $labelTimer.ForeColor = [System.Drawing.Color]::DarkRed
-    $labelTimer.TextAlign = 'MiddleCenter'
-    $form.Controls.Add($labelTimer)
-
-    $btnUpdateNow = New-Object System.Windows.Forms.Button
-    $btnUpdateNow.Text = "Update Now"
-    $btnUpdateNow.Font = New-Object System.Drawing.Font("Segoe UI", 10, [System.Drawing.FontStyle]::Bold)
-    $btnUpdateNow.Size = New-Object System.Drawing.Size(150, 40)
-    $btnUpdateNow.Location = New-Object System.Drawing.Point(145, 155)
-    $btnUpdateNow.UseVisualStyleBackColor = $true
-
-    $timer = New-Object System.Windows.Forms.Timer
-    $timer.Interval = 1000
-    $script:remaining = 3600 # 1 Hour
-
-    $btnUpdateNow.Add_Click({
-        $timer.Stop()
-        $script:allowClose = $true
-        $form.Close()
-    })
-    $form.Controls.Add($btnUpdateNow)
-
-    $timer.Add_Tick({
-        if ($script:remaining -gt 0) {
-            $timeSpan = [TimeSpan]::FromSeconds($script:remaining)
-            $labelTimer.Text = $timeSpan.ToString("hh\:mm\:ss")
-            $script:remaining--
-        } else {
-            $timer.Stop()
-            $script:allowClose = $true
-            $form.Close()
-        }
-    })
-
-    $initialSpan = [TimeSpan]::FromSeconds($script:remaining)
-    $labelTimer.Text = $initialSpan.ToString("hh\:mm\:ss")
-
-    $timer.Start()
-    $form.ShowDialog() | Out-Null
-    $timer.Dispose()
-    $form.Dispose()
+    # Use ServiceNotification flag to display onto the interactive desktop
+    [System.Windows.Forms.MessageBox]::Show(
+        $message,
+        $title,
+        [System.Windows.Forms.MessageBoxButtons]::OK,
+        [System.Windows.Forms.MessageBoxIcon]::Information,
+        [System.Windows.Forms.MessageBoxDefaultButton]::Button1,
+        [System.Windows.Forms.MessageBoxOptions]::ServiceNotification
+    ) | Out-Null
 
     # --------------------------------------------------------------------------
     # Step 3: Close Running 8x8 Processes & Install Silently
@@ -190,7 +121,7 @@ try {
     $exePath = $possiblePaths | Where-Object { Test-Path $_ } | Select-Object -First 1
 
     if ($exePath) {
-        # Launching via explorer.exe ensures standard user execution token
+        # Using explorer.exe to launch the executable forces standard user graphics execution
         Start-Process "explorer.exe" -ArgumentList "`"$exePath`""
         Write-Host "8x8 Work launched successfully." -ForegroundColor Green
     } else {