I have an IBM Java application that recommended on Windows 2003 that having as much contiguous free memory as possible. On windows 2003 there was a registry setting HeapDecommitFreeBlockThreshold as seen at http://support.microsoft.com/kb/315407 I have a customer that has this application installed on Windows 2008. I have Googled to see if this registry setting is still applicable to Win 2008 and later O/S's but can't find anything definitive. Anyone with experience using this setting and if it is still applicable on O/S's later than 2003. Thanks

