diff --git a/src/AddIns/BackendBindings/Python/PythonBinding/Test/Utils/MockWorkbench.cs b/src/AddIns/BackendBindings/Python/PythonBinding/Test/Utils/MockWorkbench.cs
index 77031b146d..6310d8b40f 100644
--- a/src/AddIns/BackendBindings/Python/PythonBinding/Test/Utils/MockWorkbench.cs
+++ b/src/AddIns/BackendBindings/Python/PythonBinding/Test/Utils/MockWorkbench.cs
@@ -159,5 +159,13 @@ namespace PythonBinding.Tests.Utils
 			throw new NotImplementedException();
 		}
 		
+		public bool FullScreen {
+			get {
+				throw new NotImplementedException();
+			}
+			set {
+				throw new NotImplementedException();
+			}
+		}
 	}
 }
diff --git a/src/AddIns/BackendBindings/WixBinding/Project/Src/Gui/PackageFilesView.cs b/src/AddIns/BackendBindings/WixBinding/Project/Src/Gui/PackageFilesView.cs
index 5315575aa4..b606ddf7c1 100644
--- a/src/AddIns/BackendBindings/WixBinding/Project/Src/Gui/PackageFilesView.cs
+++ b/src/AddIns/BackendBindings/WixBinding/Project/Src/Gui/PackageFilesView.cs
@@ -15,7 +15,6 @@ using ICSharpCode.AvalonEdit.AddIn.Options;
 using ICSharpCode.Core;
 using ICSharpCode.NRefactory;
 using ICSharpCode.SharpDevelop;
-using ICSharpCode.Core;
 using ICSharpCode.SharpDevelop.Dom;
 using ICSharpCode.SharpDevelop.Editor;
 using ICSharpCode.SharpDevelop.Editor.AvalonEdit;
diff --git a/src/AddIns/BackendBindings/WixBinding/Test/Utils/MockWorkbench.cs b/src/AddIns/BackendBindings/WixBinding/Test/Utils/MockWorkbench.cs
index 7d9395ccc8..d19759e62e 100644
--- a/src/AddIns/BackendBindings/WixBinding/Test/Utils/MockWorkbench.cs
+++ b/src/AddIns/BackendBindings/WixBinding/Test/Utils/MockWorkbench.cs
@@ -186,6 +186,15 @@ namespace WixBinding.Tests.Utils
 			if (ViewClosed != null) {
 				ViewClosed(this, e);
 			}
-		}		
+		}
+		
+		public bool FullScreen {
+			get {
+				throw new NotImplementedException();
+			}
+			set {
+				throw new NotImplementedException();
+			}
+		}
 	}
 }
diff --git a/src/AddIns/DisplayBindings/XmlEditor/Test/Utils/MockWorkbench.cs b/src/AddIns/DisplayBindings/XmlEditor/Test/Utils/MockWorkbench.cs
index 38c063e0dd..4eeb1c08b4 100644
--- a/src/AddIns/DisplayBindings/XmlEditor/Test/Utils/MockWorkbench.cs
+++ b/src/AddIns/DisplayBindings/XmlEditor/Test/Utils/MockWorkbench.cs
@@ -190,5 +190,14 @@ namespace XmlEditor.Tests.Utils
 		{
 			throw new NotImplementedException();
 		}
+		
+		public bool FullScreen {
+			get {
+				throw new NotImplementedException();
+			}
+			set {
+				throw new NotImplementedException();
+			}
+		}
 	}
 }