RAMMap Memory Analysis Utility
Sysinternals has made another great tool available, RAMMap which is an advanced physical memory usage analysis utility for Windows. In simple terms you get more information about how the memory is being used in the system.
Use RAMMap to gain understanding of the way Windows manages memory, to analyze application memory usage, or to answer specific questions about how RAM is being allocated. RAMMap’s refresh feature enables you to update the display and it includes support for saving and loading memory snapshots.
RAMMap only supports the following operating systems: Vista, Windows 7, and Windows Server 2008. 
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rammap, sysinternals — May 23, 2010