>I just found this in help:
>
>In Visual FoxPro, SYS(1001) returns the virtual memory pool size, which is approximately four times
>the amount of physical memory.
>
>Now I see why you are dividing by 4.
>
>Tracy.
>
>
Tracy,

This approach is a generic way of handling memory in VFP. The best method is to "tune" your machine. I submitted a faq some time ago on how to do this. Check it out. It makes a BIG difference!