diff --git a/ProcessCpuUsageWatcher.cs b/ProcessCpuUsageWatcher.cs
index acabdb4..dc0dbb8 100644
--- a/ProcessCpuUsageWatcher.cs
+++ b/ProcessCpuUsageWatcher.cs
@@ -32,9 +32,9 @@ namespace ProcessCpuUsageStatusWindow
 
         #region Initialize and terminate
 
-        public void Initialize(TimeSpan updateInterval, ProcessListUpdatedDelegate callback)
+        public void Initialize(TimeSpan updateInterval, ProcessListUpdatedDelegate callback, Dispatcher dispatcher)
         {
-            _dispatcher = Dispatcher.CurrentDispatcher;
+            _dispatcher = dispatcher;
 
             // Create a new dictionary for the process list
             CurrentProcessList = new Dictionary<string, ProcessCpuUsage>();
diff --git a/WindowSource.cs b/WindowSource.cs
index e2137dd..b22e91b 100644
--- a/WindowSource.cs
+++ b/WindowSource.cs
@@ -1,4 +1,6 @@
-using FloatingStatusWindowLibrary;
+using System.Threading.Tasks;
+using System.Windows.Threading;
+using FloatingStatusWindowLibrary;
 using ProcessCpuUsageStatusWindow.Properties;
 using System;
 using System.Collections.Generic;
@@ -18,7 +20,9 @@ namespace ProcessCpuUsageStatusWindow
             _floatingStatusWindow.SetText(Resources.Loading);
 
             _processCpuUsageWatcher = new ProcessCpuUsageWatcher();
-            _processCpuUsageWatcher.Initialize(Settings.Default.UpdateInterval, UpdateDisplay);
+
+            var dispatcher = Dispatcher.CurrentDispatcher;
+            Task.Factory.StartNew(() => _processCpuUsageWatcher.Initialize(Settings.Default.UpdateInterval, UpdateDisplay, dispatcher));
         }
 
         public void Dispose()