Index: DamClients/DamUI/trunk/src/Dam/Forms/DamPlugin.cs
===================================================================
diff -u -r2234 -r2235
--- DamClients/DamUI/trunk/src/Dam/Forms/DamPlugin.cs	(.../DamPlugin.cs)	(revision 2234)
+++ DamClients/DamUI/trunk/src/Dam/Forms/DamPlugin.cs	(.../DamPlugin.cs)	(revision 2235)
@@ -25,6 +25,7 @@
 using System.Drawing;
 using System.IO;
 using System.Linq;
+using System.Reflection;
 using System.Windows.Forms;
 using Deltares.Dam.Data;
 using Deltares.Dam.Data.DamEngineIo;
@@ -82,8 +83,6 @@
         private CsvExportData lastDesignResult = null;
         private LocationResult lastLocationResult = null;
         private LocationJob currentLocationJob = null;
-        private DamProjectVersionXmlHandler damProjectVersionXmlHandler;
-
         private readonly GridViewControl locationsControl = new GridViewControl
         {
             Name = "Locations", ShowToolbar = true, HideUnusedColumns = true
@@ -190,8 +189,6 @@
             LocalizationManager.CultureChanged += (sender, args) => UpdateNavigatorTopItem();
 
             // for backward compatibility
-            damProjectVersionXmlHandler = new DamProjectVersionXmlHandler();
-            XmlHandler.RegisterObjectHandler(damProjectVersionXmlHandler);
             XmlHandler.RegisterObjectHandler(new FailureMechanismeParamatersMStabXmlHandler());
 
             // This is to force the version type (Alpha, Pre-Alpha etc.) to be updated 
@@ -381,18 +378,6 @@
         /// </value>
         public bool IsChartVisible { get; set; }
 
-        private string GetMainVersion(string fullVersion)
-        {
-            if (fullVersion.Contains("."))
-            {
-                string[] currentVer = fullVersion.Split(".".ToCharArray());
-                var main = currentVer[0];
-                var sec = currentVer[1];
-                return main + "." + sec;
-            }
-            return fullVersion;
-        }
-
         public void Assign(object source)
         {
             var projectData = source as DamProjectData;
@@ -404,17 +389,6 @@
                 projectData.ClearResults();
             }
 
-            var damProjectVersion = damProjectVersionXmlHandler.GetDamProjectVersion();
-            damProjectVersion = GetMainVersion(damProjectVersion);
-            if (damProjectVersion != null)
-            {
-                var currentProgramVersion = GetMainVersion(About.Version);
-                if (!currentProgramVersion.Equals(damProjectVersion))
-                {
-                    projectData.ClearResults();
-                }
-            }
-
             initial = false;
 
 //            var args = Environment.GetCommandLineArgs();
Index: DamClients/DamUI/trunk/src/Dam/Tests/TestHelper/ProjectLoader.cs
===================================================================
diff -u -r2168 -r2235
--- DamClients/DamUI/trunk/src/Dam/Tests/TestHelper/ProjectLoader.cs	(.../ProjectLoader.cs)	(revision 2168)
+++ DamClients/DamUI/trunk/src/Dam/Tests/TestHelper/ProjectLoader.cs	(.../ProjectLoader.cs)	(revision 2235)
@@ -34,6 +34,8 @@
 {
     public class ProjectLoader
     {
+        private const string currentTestVersion = "19.1";
+
         private static DamProjectData LoadDike(string projectDataFolder)
         {
             var damProject = new DamProject{ DamProjectData = new DamProjectData() };
@@ -54,6 +56,7 @@
             {
                 using (var damProject = new DamProject())
                 {
+                    damProject.SetTestProgramVersion(currentTestVersion);
                     return (damProject.OpenXMLProject(dataFileOrPath) as DamProjectData);
                 }
             }
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs
===================================================================
diff -u -r2234 -r2235
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs	(.../DamProject.cs)	(revision 2234)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs	(.../DamProject.cs)	(revision 2235)
@@ -29,6 +29,7 @@
 using Deltares.Standard.IO.DtoAssembler;
 using Deltares.Standard.Reflection;
 using System.IO;
+using Deltares.Dam.Data.IO;
 using Deltares.Geotechnics.Soils;
 using Deltares.Standard;
 using Deltares.Standard.IO;
@@ -48,7 +49,9 @@
     public class DamProject : IDisposable
     {
         private string projectFileName;
+        private string testProgramVersion;
         private DamProjectData damProjectData;
+
         public static ProjectPathLocation ProjectWorkingPathLocation = ProjectPathLocation.InApplicationMap;
         public static string UserWorkingPath = DamProject.GetNewTempDirectory();
         public static string ProjectMapWorkingPath = DamProject.GetNewTempDirectory();
@@ -222,8 +225,39 @@
             project.SaveXMLProject(fileName, null);
         }
 
+        private string GetMainVersion(string fullVersion)
+        {
+            if (fullVersion.Contains("."))
+            {
+                string[] currentVer = fullVersion.Split(".".ToCharArray());
+                var main = currentVer[0];
+                var sec = currentVer[1];
+                return main + "." + sec;
+            }
+            return fullVersion;
+        }
+
+        /// <summary>
+        /// Sets the test program version.
+        /// Note: To be used by unit tests only.
+        /// </summary>
+        /// <param name="testVersion">The test version.</param>
+        public void SetTestProgramVersion(string testVersion)
+        {
+            testProgramVersion = testVersion;
+        }
+
+        /// <summary>
+        /// Opens the XML project.
+        /// </summary>
+        /// <param name="fileName">Name of the file.</param>
+        /// <returns></returns>
         public object OpenXMLProject(string fileName)
         {
+            // To retrieve file version from xml, add handler.
+            var damProjectVersionXmlHandler = new DamProjectVersionXmlHandler();
+            XmlHandler.RegisterObjectHandler(damProjectVersionXmlHandler);
+
             ClearProject();
             this.ProjectFileName = fileName;
             DataEventPublisher.InvokeWithoutPublishingEvents(() =>
@@ -238,6 +272,24 @@
                     ClearProject();
                     damProjectData.DamProjectType = DamProjectType.AssessOld;
                 }
+                else
+                {
+                    var damProjectVersion = damProjectVersionXmlHandler.GetDamProjectVersion();
+                    damProjectVersion = GetMainVersion(damProjectVersion);
+                    if (damProjectVersion != null)
+                    {
+                        var currentProgramVersion = About.Version;
+                        if (currentProgramVersion == null)
+                        {
+                            currentProgramVersion = testProgramVersion;
+                        }
+                        currentProgramVersion = GetMainVersion(currentProgramVersion);
+                        if (!currentProgramVersion.Equals(damProjectVersion))
+                        {
+                            damProjectData.ClearResults();
+                        }
+                    }
+                }
                 //var LVersion = xmlSerializer.xmlDocument.Version;
                 // Project still needs a reference to soilmaterials database; to be resolved later
                 UpdateSoilDatabaseReferences(damProjectFolder);
Index: DamClients/DamUI/trunk/src/Dam/Tests/LoadCompatiblityTest.cs
===================================================================
diff -u -r2168 -r2235
--- DamClients/DamUI/trunk/src/Dam/Tests/LoadCompatiblityTest.cs	(.../LoadCompatiblityTest.cs)	(revision 2168)
+++ DamClients/DamUI/trunk/src/Dam/Tests/LoadCompatiblityTest.cs	(.../LoadCompatiblityTest.cs)	(revision 2235)
@@ -25,9 +25,13 @@
 using System.Linq;
 
 using Deltares.Dam.Data;
+using Deltares.Dam.Data.IO;
+using Deltares.Dam.Forms;
 using Deltares.Dam.TestHelper;
 using Deltares.Geotechnics.Soils;
 using Deltares.Geotechnics.SurfaceLines;
+using Deltares.Standard;
+using Deltares.Standard.IO.Xml;
 using Deltares.Standard.TestUtils;
 
 using KellermanSoftware.CompareNetObjects;
@@ -429,7 +433,6 @@
             string dataFolder, string projectFilename)
         {
             string fullProjectFilename = Path.Combine(dataFolder, projectFilename);
-
             using (var projectData = ProjectLoader.LoadProjectData(fullProjectFilename))
             {
                 Assert.AreEqual(0, projectData.DesignCalculations.Count);