Actually, I believe that the final release of 98 will work with 512MB before it starts getting flakey. The limit was 128MB in the first release of the OS. Past that Windows can allocate so much space to it's virtual cache it eats into address the system needs for other things. One other benefit of Cacheman is that it will reclaim memory which ill behaved applications sometimes fail to free when they are closed.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken