GlobalMemoryStatus to get "system resources free&

refering to http://msdn.microsoft.com/library/de...status_str.asp

how do i use "GlobalMemoryStatus "to get system resources free"
as displayed in the microsoft system information obtained by startmenu --> accessories --> system tools


dwMemoryLoad doesnt seem to work

Q2. anyway what is physical memory ?

Q3. what is virtual memory??

Q4. which reflects how well the system runs?
i tink "system resources free" as above is a good indicator but which API can i use to obtain "system resources free" ??



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