diff --git a/telldus-gui/Plugins/TelldusCenterPlugin.cmake b/telldus-gui/Plugins/TelldusCenterPlugin.cmake
index 9a70e198..20ab8c6a 100644
--- a/telldus-gui/Plugins/TelldusCenterPlugin.cmake
+++ b/telldus-gui/Plugins/TelldusCenterPlugin.cmake
@@ -1,6 +1,7 @@
 FIND_PACKAGE( Qt4 REQUIRED )
 SET(QT_USE_QTSCRIPT TRUE)
 INCLUDE( ${QT_USE_FILE} )
+FIND_PACKAGE( SignTool REQUIRED )
 
 if(COMMAND cmake_policy)
 	cmake_policy(SET CMP0003 NEW)
@@ -119,6 +120,7 @@ IF(Plugin_SRCS)
 			LIBRARY DESTINATION "${PLUGIN_LIB_FULL_PATH}/script" 
 		)
 	ENDIF (APPLE)
+	SIGN(${Plugin_NAME})
 ELSE(Plugin_SRCS)
 	ADD_CUSTOM_TARGET(${Plugin_NAME} ALL
 		SOURCES ${Plugin_FILES}
diff --git a/telldus-gui/TelldusCenter/CMakeLists.txt b/telldus-gui/TelldusCenter/CMakeLists.txt
index 1194b4eb..7aa29d22 100644
--- a/telldus-gui/TelldusCenter/CMakeLists.txt
+++ b/telldus-gui/TelldusCenter/CMakeLists.txt
@@ -4,6 +4,8 @@ SET(QT_USE_QTNETWORK TRUE)
 SET(QT_USE_QTUITOOLS TRUE)
 INCLUDE( ${QT_USE_FILE} )
 
+FIND_PACKAGE( SignTool REQUIRED )
+
 if(COMMAND cmake_policy)
 	cmake_policy(SET CMP0003 NEW)
 	cmake_policy(SET CMP0005 NEW)
@@ -148,6 +150,7 @@ TARGET_LINK_LIBRARIES( ${telldus-center_TARGET}	${telldus-center_LIBRARIES} )
 SET_TARGET_PROPERTIES(${telldus-center_TARGET} PROPERTIES
 	MACOSX_BUNDLE_INFO_PLIST ${CMAKE_CURRENT_BINARY_DIR}/Info.plist
 )
+SIGN(${telldus-center_TARGET})
 IF (APPLE)
 	SET_TARGET_PROPERTIES(${telldus-center_TARGET} PROPERTIES
 		RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}
diff --git a/telldus-gui/TelldusGui/CMakeLists.txt b/telldus-gui/TelldusGui/CMakeLists.txt
index 03293b49..fe7f5a5e 100644
--- a/telldus-gui/TelldusGui/CMakeLists.txt
+++ b/telldus-gui/TelldusGui/CMakeLists.txt
@@ -1,6 +1,8 @@
 FIND_PACKAGE( Qt4 REQUIRED )
 INCLUDE( ${QT_USE_FILE} )
 
+FIND_PACKAGE( SignTool REQUIRED )
+
 if(COMMAND cmake_policy)
 	cmake_policy(SET CMP0003 NEW)
 endif(COMMAND cmake_policy)
@@ -141,6 +143,8 @@ ENDIF (UNIX)
 
 TARGET_LINK_LIBRARIES( ${telldus-gui_TARGET}	${telldus-gui_LIBRARIES} )
 
+SIGN(${telldus-gui_TARGET})
+
 SET_TARGET_PROPERTIES(${telldus-gui_TARGET} PROPERTIES
 	FRAMEWORK TRUE
 #	PUBLIC_HEADER ${telldus-gui_HDRS}
diff --git a/telldus-gui/cmake/FindSignTool.cmake b/telldus-gui/cmake/FindSignTool.cmake
new file mode 100644
index 00000000..002bca60
--- /dev/null
+++ b/telldus-gui/cmake/FindSignTool.cmake
@@ -0,0 +1,19 @@
+
+IF(WIN32)
+	SET(SIGN_FILES FALSE CACHE BOOL "Sign files ofter build")
+ENDIF()
+
+FUNCTION(SIGN TARGET)
+	IF (NOT WIN32)
+		RETURN()
+	ENDIF()
+	IF (NOT SIGN_FILES)
+		RETURN()
+	ENDIF()
+	GET_TARGET_PROPERTY(file ${TARGET} LOCATION)
+	GET_FILENAME_COMPONENT(filename ${file} NAME)
+	ADD_CUSTOM_COMMAND( TARGET ${TARGET} POST_BUILD
+		COMMAND signtool.exe sign /a /t http://timestamp.verisign.com/scripts/timstamp.dll ${file}
+		COMMENT "Signing file ${filename}"
+	)
+ENDFUNCTION()