diff --git a/GreenshotInterop/OfficeInterop/ExcelInterop.cs b/GreenshotInterop/OfficeInterop/ExcelInterop.cs
index 391abdb49..4134d1952 100644
--- a/GreenshotInterop/OfficeInterop/ExcelInterop.cs
+++ b/GreenshotInterop/OfficeInterop/ExcelInterop.cs
@@ -18,10 +18,6 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-using System;
-using System.Collections.Generic;
-using System.Reflection;
-using Greenshot.Interop;
 
 namespace Greenshot.Interop.Office {
 	// See http://msdn.microsoft.com/en-us/library/microsoft.office.interop.excel.application.aspx
diff --git a/GreenshotInterop/OfficeInterop/OfficeInterop.cs b/GreenshotInterop/OfficeInterop/OfficeInterop.cs
index a6246b405..b69ca3045 100644
--- a/GreenshotInterop/OfficeInterop/OfficeInterop.cs
+++ b/GreenshotInterop/OfficeInterop/OfficeInterop.cs
@@ -18,7 +18,6 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-using System;
 using System.Collections;
 
 namespace Greenshot.Interop.Office {
diff --git a/GreenshotInterop/OfficeInterop/OneNoteInterop.cs b/GreenshotInterop/OfficeInterop/OneNoteInterop.cs
index 89d6f4ed5..9b3d1ad91 100644
--- a/GreenshotInterop/OfficeInterop/OneNoteInterop.cs
+++ b/GreenshotInterop/OfficeInterop/OneNoteInterop.cs
@@ -19,9 +19,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 using System;
-using System.Collections.Generic;
-using System.Xml.Schema;
-using Greenshot.Interop;
 
 namespace Greenshot.Interop.Office {
 	// More details about OneNote: http://msdn.microsoft.com/en-us/magazine/ff796230.aspx
diff --git a/GreenshotInterop/OfficeInterop/OutlookInterop.cs b/GreenshotInterop/OfficeInterop/OutlookInterop.cs
index 48addd0d4..fc33fb0a5 100644
--- a/GreenshotInterop/OfficeInterop/OutlookInterop.cs
+++ b/GreenshotInterop/OfficeInterop/OutlookInterop.cs
@@ -20,7 +20,6 @@
  */
 using System;
 using System.Collections;
-using System.Collections.Generic;
 
 /// <summary>
 /// This utils class should help setting the content-id on the attachment for Outlook < 2007
diff --git a/GreenshotInterop/OfficeInterop/PowerpointInterop.cs b/GreenshotInterop/OfficeInterop/PowerpointInterop.cs
index 16e0c14eb..41f81f3a8 100644
--- a/GreenshotInterop/OfficeInterop/PowerpointInterop.cs
+++ b/GreenshotInterop/OfficeInterop/PowerpointInterop.cs
@@ -18,11 +18,7 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-using System;
 using System.Collections;
-using System.Drawing;
-using System.Runtime.Remoting.Messaging;
-using Greenshot.Interop;
 
 namespace Greenshot.Interop.Office {
 	// See http://msdn.microsoft.com/en-us/library/microsoft.office.interop.powerpoint.application_members.aspx
diff --git a/GreenshotInterop/OfficeInterop/WordInterop.cs b/GreenshotInterop/OfficeInterop/WordInterop.cs
index e863c2acd..31745f300 100644
--- a/GreenshotInterop/OfficeInterop/WordInterop.cs
+++ b/GreenshotInterop/OfficeInterop/WordInterop.cs
@@ -18,9 +18,6 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-using System;
-using System.Collections;
-using Greenshot.Interop;
 
 namespace Greenshot.Interop.Office {
 	// See http://msdn.microsoft.com/de-de/library/microsoft.office.interop.word.applicationclass_members%28v=Office.11%29.aspx