diff --git a/Contrib/nsDialogs/Readme.html b/Contrib/nsDialogs/Readme.html
index ad03ec1d..d2cb359e 100644
--- a/Contrib/nsDialogs/Readme.html
+++ b/Contrib/nsDialogs/Readme.html
@@ -57,7 +57,7 @@ abbr { font-variant: none; cursor: help; }
 <li><a href="#mref-onback">NSD_OnBack</a>, <a href="#mref-onchange">NSD_OnChange</a>, <a href="#mref-onclick">NSD_OnClick</a>, <a href="#mref-onnotify">NSD_OnNotify</a></li>
 <li><a href="#mref-setfocus">NSD_SetFocus</a></li>
 <li><a href="#mref-createtimer">NSD_CreateTimer</a>, <a href="#mref-killtimer">NSD_KillTimer</a></li>
-<li><a href="#mref-addstyle">NSD_AddStyle</a>, <a href="#mref-addexstyle">NSD_AddExStyle</a></li>
+<li><a href="#mref-addstyle">NSD_AddStyle</a>, <a href="#mref-addexstyle">NSD_AddExStyle</a>, <a href="#mref-removestyle">NSD_RemoveStyle</a>, <a href="#mref-removeexstyle">NSD_RemoveExStyle</a></li>
 <li><a href="#mref-gettext">NSD_GetText</a>, <a href="#mref-settext">NSD_SetText</a></li>
 <li>Text, Password &amp; Number: 
 <a href="#mref-settextlimit">NSD_Edit_SetTextLimit</a>, 
@@ -598,6 +598,14 @@ SectionEnd</pre></blockquote>
 <p>Adds one or more extended window styles to a control. Multiple styles should be separated with pipes `|'.</p>
 <p>See <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/ff700543">MSDN</a> for style descriptions.</p>
 
+<h3><a name="mref-removestyle"></a>NSD_RemoveStyle</h3>
+<p><code>${NSD_RemoveStyle} <i>control_HWND</i> <i>style</i></code></p>
+<p>Removes one or more window styles from a control.</p>
+
+<h3><a name="mref-removeexstyle"></a>NSD_RemoveExStyle</h3>
+<p><code>${NSD_RemoveExStyle} <i>control_HWND</i> <i>style</i></code></p>
+<p>Removes one or more extended window styles from a control.</p>
+
 <h3><a name="mref-gettext"></a>NSD_GetText</h3>
 <p><code>${NSD_GetText} <i>control_HWND</i> <i>$output_variable</i></code></p>
 <p>Retrieves the text of a control and stores it into <i>output_variable</i>. Especially useful for textual controls.</p>
diff --git a/Contrib/nsDialogs/nsDialogs.nsh b/Contrib/nsDialogs/nsDialogs.nsh
index 671f8e6f..55d6168b 100644
--- a/Contrib/nsDialogs/nsDialogs.nsh
+++ b/Contrib/nsDialogs/nsDialogs.nsh
@@ -481,6 +481,15 @@ System::Call 'COMCTL32::InitCommonControlsEx(*ls)' ; INITCOMMONCONTROLSEX as UIN
 	System::Call "user32::SetWindowLong(p${HWND},p${GWL},ps)"
 !macroend
 
+!define NSD_RemoveStyle "!insertmacro _NSD_GWLRemoveFlags ${GWL_STYLE} " 
+!define NSD_RemoveExStyle "!insertmacro _NSD_GWLRemoveFlags ${GWL_EXSTYLE} "
+!macro _NSD_GWLRemoveFlags GWL HWND DATA
+System::Call "user32::GetWindowLong(p${HWND},i${GWL})p.s"
+System::Int64Op "${DATA}" ~ & ; Perform ~ and prepare the stack for &
+System::Int64Op ; Perform &
+System::Call "user32::SetWindowLong(p${HWND},i${GWL},ps)"
+!macroend 
+
 !define NSD_GetStyle "!insertmacro _NSD_GWLGetFlags ${GWL_STYLE} "
 !define NSD_GetExStyle "!insertmacro _NSD_GWLGetFlags ${GWL_EXSTYLE} "
 !macro _NSD_GWLGetFlags GWL HWND RET
diff --git a/Include/WinMessages.nsh b/Include/WinMessages.nsh
index 08c038aa..eab4b5d7 100644
--- a/Include/WinMessages.nsh
+++ b/Include/WinMessages.nsh
@@ -46,6 +46,7 @@ TBM     Track bar
 UDM     Up-down control
 HKM     Hot key control
 IPM     IP address control
+NCM     Network address control
 -----------------------------------
 
 NOT included messages (WM_USER + X)
@@ -823,5 +824,11 @@ ${_NSIS_DEFAW} ACM_OPEN
 !define /math IPM_SETFOCUS     ${WM_USER} + 104
 !define /math IPM_ISBLANK      ${WM_USER} + 105
 
+#NetworkAddress control#
+!define /math NCM_GETADDRESS ${WM_USER} + 1 ; Vista+
+!define /math NCM_SETALLOWTYPE ${WM_USER} + 2
+!define /math NCM_GETALLOWTYPE ${WM_USER} + 3
+!define /math NCM_DISPLAYERRORTIP ${WM_USER} + 4
+
 !verbose pop
 !endif
\ No newline at end of file
diff --git a/Source/BinInterop.h b/Source/BinInterop.h
index 5b8c20ab..a65a8c35 100644
--- a/Source/BinInterop.h
+++ b/Source/BinInterop.h
@@ -31,6 +31,7 @@ typedef struct {
   UINT32 Width, Height;
   INT32 RawHeight;
   WORD BPP, Planes;
+  bool IsTopDownBitmap() const { return Height != (UINT32) RawHeight; }
 } GENERICIMAGEINFO;
 
 DWORD GetDIBHeaderInfo(const void*pData, size_t DataSize, GENERICIMAGEINFO&Info);
diff --git a/Source/ResourceEditor.cpp b/Source/ResourceEditor.cpp
index 1fd45cb0..d54062a2 100644
--- a/Source/ResourceEditor.cpp
+++ b/Source/ResourceEditor.cpp
@@ -770,7 +770,7 @@ bool CResourceEditor::AddExtraIconFromFile(const WINWCHAR* Type, WINWCHAR* Name,
       GENERICIMAGEINFO info;
       if (/*!IsPNGFile(pImg, imgSize, &info) &&*/ !GetDIBHeaderInfo(pImg, imgSize, info)) // Are PNG cursor images allowed?
         goto fail;
-      //if (info.RawHeight != info.Height && isDib)
+      //if (info.IsTopDownBitmap() && isDib)
       //  goto fail; // Are TopDown DIBs allowed? Probably not but we play it safe.
 
       typedef struct { WORD x, y; } CURSORIMGHDR; //msdn.microsoft.com/en-us/library/windows/desktop/ms648017(v=vs.85).aspx
diff --git a/Source/util.cpp b/Source/util.cpp
index ba194c1c..fed50407 100644
--- a/Source/util.cpp
+++ b/Source/util.cpp
@@ -146,7 +146,7 @@ int update_bitmap(CResourceEditor* re, WORD id, const TCHAR* filename, int width
   signed char hdr[14+124], retval = -2;
   size_t size = fread(hdr, 1, sizeof(hdr), f);
   GENERICIMAGEINFO info;
-  if (IsBMPFile(hdr, size, &info) && 0 == fseek(f, 0, SEEK_SET) && info.Height == info.RawHeight)
+  if (IsBMPFile(hdr, size, &info) && 0 == fseek(f, 0, SEEK_SET) && !info.IsTopDownBitmap())
   {
     if ((width && width != (int) info.Width) || (height && height != (int) info.Height))
       retval = -3;