diff --git a/dlls/riched20/caret.c b/dlls/riched20/caret.c
index 8181f0a385f..24b37589ca2 100644
--- a/dlls/riched20/caret.c
+++ b/dlls/riched20/caret.c
@@ -41,6 +41,38 @@ int ME_GetTextLength(ME_TextEditor *editor)
   return ME_CharOfsFromRunOfs(editor, ME_FindItemBack(editor->pBuffer->pLast, diRun), 0);   
 }
 
+
+int ME_GetTextLengthEx(ME_TextEditor *editor, GETTEXTLENGTHEX *how)
+{
+  int length;
+  
+  if (how->flags & GTL_PRECISE && how->flags & GTL_CLOSE)
+    return E_INVALIDARG;
+  if (how->flags & GTL_NUMCHARS && how->flags & GTL_NUMBYTES)
+    return E_INVALIDARG;
+  
+  length = ME_GetTextLength(editor);
+  
+  if (how->flags & GTL_USECRLF)
+    length += editor->nParagraphs;
+  
+  if (how->flags & GTL_NUMBYTES)
+  {
+    CPINFO cpinfo;
+    
+    if (how->codepage == 1200)
+      return length * 2;
+    if (how->flags & GTL_PRECISE)
+      FIXME("GTL_PRECISE flag unsupported. Using GTL_CLOSE\n");
+    if (GetCPInfo(how->codepage, &cpinfo))
+      return length * cpinfo.MaxCharSize;
+    ERR("Invalid codepage %u\n", how->codepage);
+    return E_INVALIDARG;
+  }
+  return length; 
+}
+
+
 void ME_SetSelection(ME_TextEditor *editor, int from, int to)
 {
   if (from == 0 && to == -1)
diff --git a/dlls/riched20/editor.c b/dlls/riched20/editor.c
index 4be3ef4e556..0e4d2b7a11a 100644
--- a/dlls/riched20/editor.c
+++ b/dlls/riched20/editor.c
@@ -65,7 +65,7 @@
   - EM_GETSCROLLPOS 3.0
 ! - EM_GETTHUMB
   - EM_GETTEXTEX 2.0
-  - EM_GETTEXTLENGTHEX
+  + EM_GETTEXTLENGTHEX (GTL_PRECISE unimplemented)
   - EM_GETTEXTMODE 2.0
 ? + EM_GETTEXTRANGE (ANSI&Unicode)
   - EM_GETTYPOGRAPHYOPTIONS 3.0
@@ -846,7 +846,6 @@ LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lP
   UNSUPPORTED_MSG(EM_GETREDONAME)
   UNSUPPORTED_MSG(EM_GETSCROLLPOS)
   UNSUPPORTED_MSG(EM_GETTEXTEX)
-  UNSUPPORTED_MSG(EM_GETTEXTLENGTHEX)
   UNSUPPORTED_MSG(EM_GETTEXTMODE)
   UNSUPPORTED_MSG(EM_GETTYPOGRAPHYOPTIONS)
   UNSUPPORTED_MSG(EM_GETUNDONAME)
@@ -1175,6 +1174,8 @@ LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lP
   }
   case WM_GETTEXTLENGTH:
     return ME_GetTextLength(editor);
+  case EM_GETTEXTLENGTHEX:
+    return ME_GetTextLengthEx(editor, (GETTEXTLENGTHEX *)wParam);
   case WM_GETTEXT:
   {
     TEXTRANGEW tr; /* W and A differ only by rng->lpstrText */
diff --git a/dlls/riched20/editor.h b/dlls/riched20/editor.h
index 3a01127bd60..a0eab82c3c9 100644
--- a/dlls/riched20/editor.h
+++ b/dlls/riched20/editor.h
@@ -160,6 +160,7 @@ void ME_SendSelChange(ME_TextEditor *editor);
 void ME_InsertGraphicsFromCursor(ME_TextEditor *editor, int nCursor);
 void ME_InternalDeleteText(ME_TextEditor *editor, int nOfs, int nChars);
 int ME_GetTextLength(ME_TextEditor *editor);
+int ME_GetTextLengthEx(ME_TextEditor *editor, GETTEXTLENGTHEX *how);
 ME_Style *ME_GetSelectionInsertStyle(ME_TextEditor *editor);
 BOOL ME_UpdateSelection(ME_TextEditor *editor, ME_Cursor *pTempCursor);