1 go to start, control panel, system, advanced, performance; settings. then select for best performance.
2 press control-alt-delete, processes, click the user name tab, and on processes that are under your user name, right click on everything but explorer.exe, iexplorer.exe, taskmgr.exe, and select end process. only to processes under your user name. dont try to stop those in the system or others. then try to open the program.
3 buy more ram of the type already found in your computer and install it.
or, go to the source:
How to optimize Word 2003, Word 2002, and Word 2000
creating an array from multiple harddrives i think might decrease performance, as hard drive memory is a lot slower than ram memory, and more hard drive requests for the page file over multiple drives will have to be created.... or something.