Javascript code:
/*
typedef struct _MEMORYSTATUSEX {
DWORD dwLength; 0
DWORD dwMemoryLoad; 4
DWORDLONG ullTotalPhys; 8
DWORDLONG ullAvailPhys; 16
DWORDLONG ullTotalPageFile; 24
DWORDLONG ullAvailPageFile; 32
DWORDLONG ullTotalVirtual; 40
DWORDLONG ullAvailVirtual; 48
DWORDLONG ullAvailExtendedVirtual; 56
} MEMORYSTATUSEX, *LPMEMORYSTATUSEX;
*/
var DIV = 1024;
var _MEMORYSTATUSEX = Interop.Allocate(64);
_MEMORYSTATUSEX.WriteDWORD(0, _MEMORYSTATUSEX.Size);
Debut.Trace('RetVal: '+Interop.Call('kernel32', 'GlobalMemoryStatusEx', _MEMORYSTATUSEX));
Debug.Trace('There is '+_MEMORYSTATUSEX.ReadDWORD(4)+' percent of memory in use.');
Debug.Trace('There are '+_MEMORYSTATUSEX.ReadDWORD(8)/DIV+' total KB of physical memory.');
Debug.Trace('There are '+_MEMORYSTATUSEX.ReadDWORD(16)/DIV+' free KB of physical memory.');
Debug.Trace('There are '+_MEMORYSTATUSEX.ReadDWORD(24)/DIV+' total KB of paging file.');
Debug.Trace('There are '+_MEMORYSTATUSEX.ReadDWORD(32)/DIV+' free KB of paging file.');
Debug.Trace('There are '+_MEMORYSTATUSEX.ReadDWORD(40)/DIV+' total KB of virtual memory.');
Debug.Trace('There are '+_MEMORYSTATUSEX.ReadDWORD(48)/DIV+' free KB of virtual memory.');
Debug.Trace('There are '+_MEMORYSTATUSEX.ReadDWORD(56)/DIV+' free KB of extended memory.');
/ 
