Added stub for OleDoAutoConvert.

dlls/ole32/compobj.c

@@ -1854,6 +1854,15 @@ done:
 }
 
 /******************************************************************************
+ *              OleDoAutoConvert        [OLE32.100]
+ */
+HRESULT WINAPI OleDoAutoConvert(IStorage *pStg, LPCLSID pClsidNew)
+{
+    FIXME("(%p,%p) : stub\n",pStg,pClsidNew);
+    return E_NOTIMPL;
+}
+
+/******************************************************************************
  *              CoTreatAsClass        [OLE32.46]
  */
 HRESULT WINAPI CoTreatAsClass(REFCLSID clsidOld, REFCLSID clsidNew)

dlls/ole32/ole32.spec

@@ -97,7 +97,7 @@
  97 stdcall OleCreateMenuDescriptor(long ptr)
  98 stdcall OleCreateStaticFromData(ptr ptr long ptr ptr ptr ptr)
  99 stdcall OleDestroyMenuDescriptor(long)
-100 stub OleDoAutoConvert
+100 stdcall OleDoAutoConvert(ptr ptr)
 101 stub OleDraw
 102 stdcall OleDuplicateData(long long long)
 103 stdcall OleFlushClipboard()