Use this function to receive informations about the memory installed. Parameter one accepts the following values:

MemorySize - total space of memory(RAM) measured in kilobyte
MemoryFree - free space of memoryp(RAM) measured in kilobyte
MemoryLoad - usage of memory measured in %
PagefileSize - size of page file measured in kilobyte
PagefileFree - free space inside the page file measured in kilobyte

Example:

%System.Memory(MemoryLoad)