diff --git a/rosapps/downloader/download.c b/rosapps/downloader/download.c
index 7a523d2561e..ded010144de 100644
--- a/rosapps/downloader/download.c
+++ b/rosapps/downloader/download.c
@@ -206,11 +206,10 @@ CreateDl(HWND Dlg, BOOL *pbCancelled)
 {
     IBindStatusCallbackImpl *This;
 
-    This = HeapAlloc(GetProcessHeap(), 0, sizeof(IBindStatusCallbackImpl));
+    This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IBindStatusCallbackImpl));
     if (!This)
       return NULL;
 
-    ZeroMemory(This, sizeof(IBindStatusCallbackImpl));
     This->vtbl = &dlVtbl;
     This->ref = 1;
     This->hDialog = Dlg;