1  Open the Apache Tomcat configuration app in sys tray, and on the "Java" tab, bump up the initial memory pool size and the maximum memory pool size to 512 Initial and 768 Max, click Ok.
2  In \Program Files\Apache software Foundation\Tomcat 5.0\bin\catalina.bat, in the last section immediately after "rem Execute Java with the applicable properties", insert this line, set CATALINA_OPTS=-mx1024m. Save the file.