diff --git a/SafeExamBrowser.Applications/ExternalApplication.cs b/SafeExamBrowser.Applications/ExternalApplication.cs
index fc72d452..700dad79 100644
--- a/SafeExamBrowser.Applications/ExternalApplication.cs
+++ b/SafeExamBrowser.Applications/ExternalApplication.cs
@@ -94,7 +94,7 @@ namespace SafeExamBrowser.Applications
 
 			lock (@lock)
 			{
-				if (instances.Any())
+				if (instances.Any() && !settings.AllowRunning)
 				{
 					logger.Info("Terminating application...");
 
diff --git a/SafeExamBrowser.Configuration/ConfigurationData/DataMapper.Applications.cs b/SafeExamBrowser.Configuration/ConfigurationData/DataMapper.Applications.cs
index 14eb0982..d8497452 100644
--- a/SafeExamBrowser.Configuration/ConfigurationData/DataMapper.Applications.cs
+++ b/SafeExamBrowser.Configuration/ConfigurationData/DataMapper.Applications.cs
@@ -127,11 +127,6 @@ namespace SafeExamBrowser.Configuration.ConfigurationData
 								application.OriginalName = originalName;
 							}
 
-							if (applicationData.TryGetValue(Keys.Applications.RendererName, out v) && v is string rendererName)
-							{
-								application.RendererName = rendererName;
-							}
-
 							if (applicationData.TryGetValue(Keys.Applications.ShowInShell, out v) && v is bool showInShell)
 							{
 								application.ShowInShell = showInShell;
diff --git a/SafeExamBrowser.Configuration/ConfigurationData/Keys.cs b/SafeExamBrowser.Configuration/ConfigurationData/Keys.cs
index c769af62..6dcdb5c9 100644
--- a/SafeExamBrowser.Configuration/ConfigurationData/Keys.cs
+++ b/SafeExamBrowser.Configuration/ConfigurationData/Keys.cs
@@ -32,7 +32,6 @@ namespace SafeExamBrowser.Configuration.ConfigurationData
 			internal const string ExecutablePath = "path";
 			internal const string OperatingSystem = "os";
 			internal const string OriginalName = "originalName";
-			internal const string RendererName = "windowHandlingProcess";
 			internal const string ShowInShell = "iconInTaskbar";
 			internal const string Whitelist = "permittedProcesses";
 		}
diff --git a/SafeExamBrowser.Settings/Applications/WhitelistApplication.cs b/SafeExamBrowser.Settings/Applications/WhitelistApplication.cs
index 7fd0a960..0941ce1a 100644
--- a/SafeExamBrowser.Settings/Applications/WhitelistApplication.cs
+++ b/SafeExamBrowser.Settings/Applications/WhitelistApplication.cs
@@ -53,7 +53,7 @@ namespace SafeExamBrowser.Settings.Applications
 		public string DisplayName { get; set; }
 
 		/// <summary>
-		/// The name of the main executable of the application.
+		/// The file name of the main executable of the application.
 		/// </summary>
 		public string ExecutableName { get; set; }
 		
@@ -72,11 +72,6 @@ namespace SafeExamBrowser.Settings.Applications
 		/// </summary>
 		public string OriginalName { get; set; }
 
-		/// <summary>
-		/// The name of the executable responsible for rendering the user interface.
-		/// </summary>
-		public string RendererName { get; set; }
-
 		/// <summary>
 		/// Determines whether the user will be able to access the application via the shell.
 		/// </summary>