diff --git a/Pepper/CPepperDoc.cpp b/Pepper/CPepperDoc.cpp
index bd131eb..84e9a19 100644
--- a/Pepper/CPepperDoc.cpp
+++ b/Pepper/CPepperDoc.cpp
@@ -104,6 +104,7 @@ BOOL CPepperDoc::OnOpenDocument(LPCTSTR lpszPathName)
 		}
 	}
 
+	libPE.CloseFile();
 	m_stFileLoader.LoadFile(lpszPathName, this);
 	UpdateAllViews(nullptr);
 
diff --git a/Pepper/Pepper.vcxproj b/Pepper/Pepper.vcxproj
index 575dceb..49de6c3 100644
--- a/Pepper/Pepper.vcxproj
+++ b/Pepper/Pepper.vcxproj
@@ -171,6 +171,7 @@
     <ClCompile Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgEncoding.cpp" />
     <ClCompile Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgFillData.cpp" />
     <ClCompile Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgGoTo.cpp" />
+    <ClCompile Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgModify.cpp" />
     <ClCompile Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgOpers.cpp" />
     <ClCompile Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgSearch.cpp" />
     <ClCompile Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgTemplMgr.cpp" />
@@ -213,6 +214,7 @@
     <ClInclude Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgEncoding.h" />
     <ClInclude Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgFillData.h" />
     <ClInclude Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgGoTo.h" />
+    <ClInclude Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgModify.h" />
     <ClInclude Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgOpers.h" />
     <ClInclude Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgSearch.h" />
     <ClInclude Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgTemplMgr.h" />
diff --git a/Pepper/Pepper.vcxproj.filters b/Pepper/Pepper.vcxproj.filters
index 217911c..be2a47c 100644
--- a/Pepper/Pepper.vcxproj.filters
+++ b/Pepper/Pepper.vcxproj.filters
@@ -88,6 +88,9 @@
     <ClCompile Include="Utility.ixx">
       <Filter>Header Files</Filter>
     </ClCompile>
+    <ClCompile Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgModify.cpp">
+      <Filter>HexCtrl</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="res\resource.h">
@@ -180,6 +183,9 @@
     <ClInclude Include="dep\HexCtrl\HexCtrl\HexCtrl.h">
       <Filter>HexCtrl</Filter>
     </ClInclude>
+    <ClInclude Include="dep\HexCtrl\HexCtrl\src\Dialogs\CHexDlgModify.h">
+      <Filter>HexCtrl</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="res\Pepper.rc">
diff --git a/Pepper/Utility.ixx b/Pepper/Utility.ixx
index 1a8a20d..13cd98c 100644
--- a/Pepper/Utility.ixx
+++ b/Pepper/Utility.ixx
@@ -577,10 +577,10 @@ export namespace Util
 		{ 18, { sizeof(DWORD), 68, L"ManagedNativeHeader.Size" } }
 	};
 
-	//All HexCtrl dialogs' IDs for hiding/showing in Views, when tab is disactivated/activated.
+	//All HexCtrl dialogs' IDs for hiding/showing in Views, when tab is deactivated/activated.
 	inline const std::vector<HEXCTRL::EHexWnd> g_vecHexDlgs {
-		HEXCTRL::EHexWnd::DLG_BKMMANAGER, HEXCTRL::EHexWnd::DLG_DATAINTERP, HEXCTRL::EHexWnd::DLG_FILLDATA,
-		HEXCTRL::EHexWnd::DLG_OPERS, HEXCTRL::EHexWnd::DLG_SEARCH, HEXCTRL::EHexWnd::DLG_ENCODING,
+		HEXCTRL::EHexWnd::DLG_BKMMANAGER, HEXCTRL::EHexWnd::DLG_DATAINTERP, HEXCTRL::EHexWnd::DLG_MODIFY,
+		HEXCTRL::EHexWnd::DLG_SEARCH, HEXCTRL::EHexWnd::DLG_ENCODING,
 		HEXCTRL::EHexWnd::DLG_GOTO, HEXCTRL::EHexWnd::DLG_TEMPLMGR };
 
 
diff --git a/Pepper/dep/HexCtrl b/Pepper/dep/HexCtrl
index 40683e8..c3555e9 160000
--- a/Pepper/dep/HexCtrl
+++ b/Pepper/dep/HexCtrl
@@ -1 +1 @@
-Subproject commit 40683e8f5fc94cdeb2868de0b0802d3bc3d80167
+Subproject commit c3555e9caf6a2003604abf0b3eb6ec418a410aed