diff --git a/dlls/riched20/caret.c b/dlls/riched20/caret.c
index 8a99394dcb6..d676a1bc38b 100644
--- a/dlls/riched20/caret.c
+++ b/dlls/riched20/caret.c
@@ -484,7 +484,7 @@ void ME_InsertOLEFromCursor(ME_TextEditor *editor, const REOBJECT* reo, int nCur
 
   di = ME_InternalInsertTextFromCursor(editor, nCursor, &space, 1, pStyle,
                                        MERF_GRAPHICS);
-  di->member.run.ole_obj = ALLOC_OBJ(*reo);
+  di->member.run.ole_obj = heap_alloc(sizeof(*reo));
   ME_CopyReObject(di->member.run.ole_obj, reo);
   ME_ReleaseStyle(pStyle);
 }
diff --git a/dlls/riched20/editor.c b/dlls/riched20/editor.c
index da7d62b095e..53d0950bd49 100644
--- a/dlls/riched20/editor.c
+++ b/dlls/riched20/editor.c
@@ -261,9 +261,7 @@ static inline BOOL is_version_nt(void)
 }
 
 static ME_TextBuffer *ME_MakeText(void) {
-  
-  ME_TextBuffer *buf = ALLOC_OBJ(ME_TextBuffer);
-
+  ME_TextBuffer *buf = heap_alloc(sizeof(*buf));
   ME_DisplayItem *p1 = ME_MakeDI(diTextStart);
   ME_DisplayItem *p2 = ME_MakeDI(diTextEnd);
   
@@ -606,8 +604,7 @@ void ME_RTFParAttrHook(RTF_Info *info)
     if (!info->editor->bEmulateVersion10) /* v4.1 */
     {
       while (info->rtfParam > info->nestingLevel) {
-        RTFTable *tableDef = ALLOC_OBJ(RTFTable);
-        ZeroMemory(tableDef, sizeof(RTFTable));
+        RTFTable *tableDef = heap_alloc_zero(sizeof(*tableDef));
         tableDef->parent = info->tableDef;
         info->tableDef = tableDef;
 
@@ -641,10 +638,7 @@ void ME_RTFParAttrHook(RTF_Info *info)
       {
         RTFTable *tableDef;
         if (!info->tableDef)
-        {
-            info->tableDef = ALLOC_OBJ(RTFTable);
-            ZeroMemory(info->tableDef, sizeof(RTFTable));
-        }
+            info->tableDef = heap_alloc_zero(sizeof(*info->tableDef));
         tableDef = info->tableDef;
         RTFFlushOutputBuffer(info);
         if (tableDef->tableRowStart &&
@@ -2993,7 +2987,7 @@ static BOOL ME_ShowContextMenu(ME_TextEditor *editor, int x, int y)
 
 ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10)
 {
-  ME_TextEditor *ed = ALLOC_OBJ(ME_TextEditor);
+  ME_TextEditor *ed = heap_alloc(sizeof(*ed));
   int i;
   DWORD props;
   LONG selbarwidth;
diff --git a/dlls/riched20/editor.h b/dlls/riched20/editor.h
index 55e259afb2f..6215068cdd4 100644
--- a/dlls/riched20/editor.h
+++ b/dlls/riched20/editor.h
@@ -25,7 +25,6 @@ struct _RTF_Info;
 
 extern HANDLE me_heap DECLSPEC_HIDDEN;
 
-#define ALLOC_OBJ(type) heap_alloc(sizeof(type))
 #define ALLOC_N_OBJ(type, count) heap_alloc((count)*sizeof(type))
 
 #define RUN_IS_HIDDEN(run) ((run)->style->fmt.dwMask & CFM_HIDDEN \
diff --git a/dlls/riched20/list.c b/dlls/riched20/list.c
index 7cb99277125..58b64e8081d 100644
--- a/dlls/riched20/list.c
+++ b/dlls/riched20/list.c
@@ -179,8 +179,8 @@ void ME_DestroyDisplayItem(ME_DisplayItem *item)
 
 ME_DisplayItem *ME_MakeDI(ME_DIType type)
 {
-  ME_DisplayItem *item = ALLOC_OBJ(ME_DisplayItem);
-  ZeroMemory(item, sizeof(ME_DisplayItem));
+  ME_DisplayItem *item = heap_alloc_zero(sizeof(*item));
+
   item->type = type;
   item->prev = item->next = NULL;
   return item;
diff --git a/dlls/riched20/style.c b/dlls/riched20/style.c
index 546258027c5..48d57e8b43c 100644
--- a/dlls/riched20/style.c
+++ b/dlls/riched20/style.c
@@ -113,7 +113,7 @@ void ME_CopyToCFAny(CHARFORMAT2W *to, CHARFORMAT2W *from)
 
 ME_Style *ME_MakeStyle(CHARFORMAT2W *style)
 {
-  ME_Style *s = ALLOC_OBJ(ME_Style);
+  ME_Style *s = heap_alloc(sizeof(*s));
 
   assert(style->cbSize == sizeof(CHARFORMAT2W));
   s->fmt = *style;
diff --git a/dlls/riched20/table.c b/dlls/riched20/table.c
index d2cab9a817c..4cd77eb3996 100644
--- a/dlls/riched20/table.c
+++ b/dlls/riched20/table.c
@@ -637,8 +637,8 @@ void ME_MoveCursorFromTableRowStartParagraph(ME_TextEditor *editor)
 
 struct RTFTable *ME_MakeTableDef(ME_TextEditor *editor)
 {
-  RTFTable *tableDef = ALLOC_OBJ(RTFTable);
-  ZeroMemory(tableDef, sizeof(RTFTable));
+  RTFTable *tableDef = heap_alloc_zero(sizeof(*tableDef));
+
   if (!editor->bEmulateVersion10) /* v4.1 */
     tableDef->gapH = 10;
   return tableDef;
diff --git a/dlls/riched20/writer.c b/dlls/riched20/writer.c
index de0bb8d72f4..aad2e448796 100644
--- a/dlls/riched20/writer.c
+++ b/dlls/riched20/writer.c
@@ -57,15 +57,11 @@ ME_StreamOutRTFText(ME_OutStream *pStream, const WCHAR *text, LONG nChars);
 static ME_OutStream*
 ME_StreamOutInit(ME_TextEditor *editor, EDITSTREAM *stream)
 {
-  ME_OutStream *pStream = ALLOC_OBJ(ME_OutStream);
+  ME_OutStream *pStream = heap_alloc_zero(sizeof(*pStream));
+
   pStream->stream = stream;
   pStream->stream->dwError = 0;
-  pStream->pos = 0;
-  pStream->written = 0;
-  pStream->nFontTblLen = 0;
   pStream->nColorTblLen = 1;
-  pStream->nNestingLevel = 0;
-  memset(&pStream->cur_fmt, 0, sizeof(pStream->cur_fmt));
   pStream->cur_fmt.dwEffects = CFE_AUTOCOLOR | CFE_AUTOBACKCOLOR;
   pStream->cur_fmt.bUnderlineType = CFU_UNDERLINE;
   return pStream;