diff --git a/src/Core/WinSWCore/Configuration/YamlConfiguration.cs b/src/Core/WinSWCore/Configuration/YamlConfiguration.cs
index 10e41d3..8356c32 100644
--- a/src/Core/WinSWCore/Configuration/YamlConfiguration.cs
+++ b/src/Core/WinSWCore/Configuration/YamlConfiguration.cs
@@ -654,12 +654,12 @@ namespace WinSW.Configuration
                     return result;
                 }
 
-                var extensionConfigListObject = new ObjectQuery(extensions).ToList<object>();
+                var extensionConfigListObject = new ObjectQuery(extensions).AsList<object>();
 
                 foreach (var item in extensionConfigListObject)
                 {
                     var configObject = new ObjectQuery(item);
-                    var id = configObject.On("id").ToString();
+                    var id = configObject.On("id").AsString();
                     result.Add(id);
                 }
 
diff --git a/src/Core/WinSWCore/Extensions/ExtensionConfigurationProvider.cs b/src/Core/WinSWCore/Extensions/ExtensionConfigurationProvider.cs
index 11e12aa..f2f8e1d 100644
--- a/src/Core/WinSWCore/Extensions/ExtensionConfigurationProvider.cs
+++ b/src/Core/WinSWCore/Extensions/ExtensionConfigurationProvider.cs
@@ -40,16 +40,16 @@ namespace WinSW.Extensions
                 return result;
             }
 
-            var extensionNodes = new ObjectQuery(extensions).ToList<object>();
+            var extensionNodes = new ObjectQuery(extensions).AsList<object>();
 
             foreach (var extension in extensionNodes)
             {
                 var query = new ObjectQuery(extension);
 
-                var id = query.On("id").ToString();
-                var enabled = query.On("enabled").ToBoolean();
-                var className = query.On("classname").ToString();
-                var settings = query.On("settings");
+                var id = query.On("id").AsString();
+                var enabled = query.On("enabled").AsBool();
+                var className = query.On("classname").AsString();
+                var settings = query.On("settings").AsParent();
 
                 var extensionConfig = new WinSWExtensionConfiguration(id, enabled, className, settings);
                 result.Add(extensionConfig);
diff --git a/src/Core/WinSWCore/Util/ObjectQuery.cs b/src/Core/WinSWCore/Util/ObjectQuery.cs
index 9e082ff..f3232ff 100644
--- a/src/Core/WinSWCore/Util/ObjectQuery.cs
+++ b/src/Core/WinSWCore/Util/ObjectQuery.cs
@@ -40,7 +40,7 @@ namespace WinSW.Util
             return this;
         }
 
-        public new string ToString()
+        public string AsString()
         {
             if (this.current == null)
             {
@@ -57,7 +57,7 @@ namespace WinSW.Util
             return result;
         }
 
-        public List<T> ToList<T>()
+        public List<T> AsList<T>()
         {
             if (this.current == null)
             {
@@ -80,7 +80,7 @@ namespace WinSW.Util
             return result;
         }
 
-        public bool ToBoolean()
+        public bool AsBool()
         {
             if (this.current == null)
             {
@@ -135,7 +135,7 @@ namespace WinSW.Util
             return this;
         }
 
-        private object? Query(object dic, string key)
+        private object? Query(object? dic, string key)
         {
             if (dic == null)
             {
@@ -156,5 +156,10 @@ namespace WinSW.Util
 
             return null;
         }
+
+        public ObjectQuery AsParent()
+        {
+            return new ObjectQuery(this.current);
+        }
     }
 }
diff --git a/src/Plugins/RunawayProcessKiller/RunawayProcessKillerExtension.cs b/src/Plugins/RunawayProcessKiller/RunawayProcessKillerExtension.cs
index e67abb2..f0b2abc 100644
--- a/src/Plugins/RunawayProcessKiller/RunawayProcessKillerExtension.cs
+++ b/src/Plugins/RunawayProcessKiller/RunawayProcessKillerExtension.cs
@@ -181,10 +181,17 @@ namespace WinSW.Plugins.RunawayProcessKiller
 
         public override void Configure(IWinSWConfiguration descriptor, ObjectQuery settings)
         {
-            this.Pidfile = settings.Get("pidfile").ToString();
-            this.StopTimeout = TimeSpan.FromMilliseconds(int.Parse(settings.Get("stopTimeOut").ToString()));
-            this.StopParentProcessFirst = settings.Get("StopParentFirst").ToBoolean();
-            this.CheckWinSWEnvironmentVariable = settings.Get("checkWinSWEnvironmentVariable").ToBoolean();
+            this.Pidfile = settings.On("pidfile").AsString();
+            this.StopTimeout = TimeSpan.FromMilliseconds(int.Parse(settings.On("stopTimeOut").AsString()));
+            this.StopParentProcessFirst = settings.On("StopParentFirst").AsBool();
+            try
+            {
+                this.CheckWinSWEnvironmentVariable = settings.Get("checkWinSWEnvironmentVariable").AsBool();
+            }
+            catch
+            {
+                this.CheckWinSWEnvironmentVariable = true;
+            }
             this.ServiceId = descriptor.Id;
         }
 
diff --git a/src/Plugins/SharedDirectoryMapper/SharedDirectoryMapper.cs b/src/Plugins/SharedDirectoryMapper/SharedDirectoryMapper.cs
index c4e24d1..4175931 100644
--- a/src/Plugins/SharedDirectoryMapper/SharedDirectoryMapper.cs
+++ b/src/Plugins/SharedDirectoryMapper/SharedDirectoryMapper.cs
@@ -28,14 +28,14 @@ namespace WinSW.Plugins.SharedDirectoryMapper
 
         public override void Configure(IWinSWConfiguration descriptor, ObjectQuery settings)
         {
-            var maps = settings.Get("mapping").ToList<object>();
+            var maps = settings.On("mapping").AsList<object>();
 
             foreach (var map in maps)
             {
                 var mapObject = new ObjectQuery(map);
-                var enable = mapObject.Get("enabled").ToBoolean();
-                var label = mapObject.Get("label").ToString();
-                var uncpath = mapObject.Get("uncpath").ToString();
+                var enable = mapObject.On("enabled").AsBool();
+                var label = mapObject.On("label").AsString();
+                var uncpath = mapObject.On("uncpath").AsString();
 
                 var config = new SharedDirectoryMapperConfig(enable, label, uncpath);
                 this._entries.Add(config);
diff --git a/src/Test/winswTests/YamlExtensionTest.cs b/src/Test/winswTests/YamlExtensionTest.cs
index c5df24a..f81cb2e 100644
--- a/src/Test/winswTests/YamlExtensionTest.cs
+++ b/src/Test/winswTests/YamlExtensionTest.cs
@@ -57,9 +57,10 @@ extensions:
         {
             ExtensionConfigurationProvider provider = new ExtensionConfigurationProvider(this._testServiceDescriptor);
             var config = provider.GetExtenstionConfiguration("killOnStartup");
-            var pid = config.Settings.On("pidfile").ToString();
-            var stopTimeOut = config.Settings.Get("stopTimeOut").ToString();
-            var StopParentFirst = config.Settings.Get("StopParentFirst").ToString();
+
+            var pid = config.Settings.On("pidfile").AsString();
+            var stopTimeOut = config.Settings.On("stopTimeOut").AsString();
+            var StopParentFirst = config.Settings.On("StopParentFirst").AsString();
 
             System.Console.WriteLine(pid);
             System.Console.WriteLine(stopTimeOut);