diff --git a/ResultsParser/Program.cs b/ResultsParser/Program.cs
index 452608c2e..8ef444333 100644
--- a/ResultsParser/Program.cs
+++ b/ResultsParser/Program.cs
@@ -15,8 +15,6 @@ namespace ResultsParser
 {
     class Program
     {
-        static ISessionFactory sessionFactory;
-
         static void Main(string[] args)
         {
             Console.WriteLine("Bench: [WR15]");
diff --git a/Statistics/StatisticsDlg.cs b/Statistics/StatisticsDlg.cs
index 5f0ced3f6..90bcd501b 100644
--- a/Statistics/StatisticsDlg.cs
+++ b/Statistics/StatisticsDlg.cs
@@ -40,7 +40,7 @@ namespace Statistics
 
                 MidOrWaterMetersCtrl ctrl = new MidOrWaterMetersCtrl();
                 ctrl.MidId = midId;
-                ctrl.Parent = this;
+                ctrl.ParentDlg = this;
                 ctrl.Dock = DockStyle.Fill;
 
                 tp.Controls.Add(ctrl);
diff --git a/Statistics/UserControls/MidOrWaterMetersCtrl.cs b/Statistics/UserControls/MidOrWaterMetersCtrl.cs
index d21cc58f5..b8d100b30 100644
--- a/Statistics/UserControls/MidOrWaterMetersCtrl.cs
+++ b/Statistics/UserControls/MidOrWaterMetersCtrl.cs
@@ -14,7 +14,7 @@ namespace Statistics.UserControls
     public partial class MidOrWaterMetersCtrl : UserControl
     {
         public int MidId;               /// 1-based MID Id.
-        public StatisticsDlg Parent;
+        public StatisticsDlg ParentDlg;
 
 
         public bool IsFlowEnabled(int i)
@@ -82,7 +82,7 @@ namespace Statistics.UserControls
 
         public IList<TestRslt> UpdateRequest(int benchId)
         {
-            return Parent.UpdateRequest(benchId, MidId);
+            return ParentDlg.UpdateRequest(benchId, MidId);
         }
 
 
diff --git a/TBF/Program.cs b/TBF/Program.cs
index 1b715c2ac..fb0c53f0e 100644
--- a/TBF/Program.cs
+++ b/TBF/Program.cs
@@ -144,7 +144,7 @@ namespace TBF
 				IEnumerable<string> files = Directory.EnumerateFiles(TempImagesDir);	/// TODO: Implement recursive directory delete
 				foreach (var file in files) File.Delete(file);
 			}
-            catch (Exception e)
+            catch (Exception)
             {
                 MessageBox.Show("Error creating a local application data directory and preparing an initial configuration", "Fatal error");
 				return;						/// Fatal error
diff --git a/TBF/Rig/Dummy/RegulValve/RegulValveCfgCtrl.cs b/TBF/Rig/Dummy/RegulValve/RegulValveCfgCtrl.cs
index 1897f735e..65cc6795b 100644
--- a/TBF/Rig/Dummy/RegulValve/RegulValveCfgCtrl.cs
+++ b/TBF/Rig/Dummy/RegulValve/RegulValveCfgCtrl.cs
@@ -12,8 +12,6 @@ namespace TBF.Rig.Dummy.RegulValve
 {
 	public partial class RegulValveCfgCtrl : UserControl, IComponentCfgCtrl
 	{
-		ComponentParametersDlg parent;
-
 		public bool ShowMore { get { return true; } }
 
 		RegulValveCfg config;
diff --git a/TBF/UI/ResultsMI/DeleteFromOracleForm.cs b/TBF/UI/ResultsMI/DeleteFromOracleForm.cs
index e5157b73b..64ba57371 100644
--- a/TBF/UI/ResultsMI/DeleteFromOracleForm.cs
+++ b/TBF/UI/ResultsMI/DeleteFromOracleForm.cs
@@ -302,7 +302,6 @@ namespace TBF.UI.ResultsMI
         bool DeleteWaterMeters(OracleConnection conn, IList<string> waterMeters)
         {
             OracleCommand cmd;
-            OracleDataReader dr;
             int deletedRows;
 
             try