CC>In releases greater than or equal to Vista SP1 and Windows Server 2008 SP1 contiguous memory logic is changed such that working set trimming is much more rare than in previous releases. Also, in these newer releases, if the memory manager trims working sets, the working sets will not be emptied; only shared pages will be trimmed. For processes whose working sets comprise mostly of private pages, the overall WS size may not dramatically change as it would before.