diff --git a/PowerEditor/src/Notepad_plus.cpp b/PowerEditor/src/Notepad_plus.cpp
index 8fa1994e7..12ddc6e2f 100644
--- a/PowerEditor/src/Notepad_plus.cpp
+++ b/PowerEditor/src/Notepad_plus.cpp
@@ -7132,6 +7132,8 @@ LRESULT Notepad_plus::runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lPa
 			bool oldVal = _mainDocTab.setHideTabBarStatus(hide);
 			_subDocTab.setHideTabBarStatus(hide);
 			::SendMessage(_hSelf, WM_SIZE, 0, 0);
+			::ShowWindow(_mainDocTab.getHSelf(), hide?SW_HIDE:SW_SHOW);
+			::ShowWindow(_subDocTab.getHSelf(), hide?SW_HIDE:SW_SHOW);
 			return oldVal;
 		}
 
diff --git a/PowerEditor/src/Notepad_plus.rc b/PowerEditor/src/Notepad_plus.rc
index 21a7bea4e..e8cf135f3 100644
--- a/PowerEditor/src/Notepad_plus.rc
+++ b/PowerEditor/src/Notepad_plus.rc
@@ -499,6 +499,8 @@ BEGIN
     LTEXT           "Home Page :",IDC_STATIC,21,54,47,8
     LTEXT           "http://notepad-plus.sourceforge.net/",IDC_HOME_ADDR,78,54,126,8
     EDITTEXT        IDC_LICENCE_EDIT,31,99,209,96,ES_MULTILINE | ES_AUTOVSCROLL | ES_READONLY | NOT WS_BORDER | WS_VSCROLL
+	//LS: CompileDateInAboutDialog: Automatically insert compile date as additional version info!
+	EDITTEXT        IDC_BUILD_DATETIME,50,25,150,10, ES_READONLY | NOT WS_BORDER
     CONTROL         "",IDI_M30ICON,"Static",SS_OWNERDRAW,21,10,20,20
 END
 
diff --git a/PowerEditor/src/WinControls/AboutDlg/AboutDlg.cpp b/PowerEditor/src/WinControls/AboutDlg/AboutDlg.cpp
index dca2a56d9..5440d197f 100644
--- a/PowerEditor/src/WinControls/AboutDlg/AboutDlg.cpp
+++ b/PowerEditor/src/WinControls/AboutDlg/AboutDlg.cpp
@@ -1,5 +1,5 @@
 //this file is part of notepad++
-//Copyright (C)2003 Don HO ( donho@altern.org )
+//Copyright (C)2003 Don HO <don.h@free.fr>
 //
 //This program is free software; you can redistribute it and/or
 //modify it under the terms of the GNU General Public License
@@ -24,6 +24,15 @@ BOOL CALLBACK AboutDlg::run_dlgProc(UINT message, WPARAM wParam, LPARAM lParam)
 	{
         case WM_INITDIALOG :
 		{
+			//LS: CompileDateInAboutDialog: Automatically insert compile date as additional version info in About-dialog!
+			HWND compileDateHandle = ::GetDlgItem(_hSelf, IDC_BUILD_DATETIME);
+			string buildTime = "Build time : ";
+			buildTime +=  __DATE__;
+			buildTime += " - ";
+			buildTime +=  __TIME__;
+			::SendMessage(compileDateHandle, WM_SETTEXT, 0, (LPARAM)buildTime.c_str());
+			::EnableWindow(compileDateHandle, FALSE);
+
             HWND licenceEditHandle = ::GetDlgItem(_hSelf, IDC_LICENCE_EDIT);
             ::SendMessage(licenceEditHandle, WM_SETTEXT, 0, (LPARAM)LICENCE_TXT);
 
diff --git a/PowerEditor/src/resource.h b/PowerEditor/src/resource.h
index 06f74a5c6..b0f3ed7a4 100644
--- a/PowerEditor/src/resource.h
+++ b/PowerEditor/src/resource.h
@@ -168,8 +168,6 @@
 
 //#define IDM 40000
 
-
-
 #define IDCMD 50000
 	//#define	IDM_EDIT_AUTOCOMPLETE    			(IDCMD+0)
 	//#define	IDM_EDIT_AUTOCOMPLETE_CURRENTFILE	(IDCMD+1)
@@ -229,7 +227,7 @@
 #define	IDC_EMAIL_ADDR		1703
 #define	IDC_ONLINEHELP_ADDR 1704
 #define	IDC_AUTHOR_NAME 1705
-
+#define IDC_BUILD_DATETIME 1706		//LS: CompileDateInAboutDialog: Automatically insert compile date as additional version info in About-dialog!
 //#define	IDD_USER_DEFINE_BOX 				 1800
 
 //#define	IDD_RUN_DLG      1900