hhctrl.ocx: Look up in chm if url doesn't contain "://".

dlls/hhctrl.ocx/help.c

@@ -89,9 +89,15 @@ BOOL NavigateToUrl(HHInfo *info, LPCWSTR surl)
     BOOL ret;
     HRESULT hres;
 
-    hres = navigate_url(info, surl);
-    if(SUCCEEDED(hres))
-        return TRUE;
+    static const WCHAR url_indicator[] = {':', '/', '/'};
+
+    TRACE("%s\n", debugstr_w(surl));
+
+    if (strstrW(surl, url_indicator)) {
+        hres = navigate_url(info, surl);
+        if(SUCCEEDED(hres))
+            return TRUE;
+    } /* look up in chm if it doesn't look like a full url */
 
     SetChmPath(&chm_path, info->pCHMInfo->szFile, surl);
     ret = NavigateToChm(info, chm_path.chm_file, chm_path.chm_index);