Process Status API

Microsoft process status helper (PSAPI.DLL) is a small dynamic link library that makes it easier to obtain information about processes and device drivers running under Microsoft® Windows NT®. 

PSAPI.DLL is included in the Platform Software Development Kit (SDK). It is also a part of the Microsoft Visual studio. You can find this library in:

Platform SDK CD-Rom   
\MSDK\PSAPI.DLL\BIN\WINNT\I386\PSAPI.DLL

Visual Studio C++ 5.0 CD-Rom *
\DEVSTUDIO\VC\BIN\PSAPI.DLL

Visual Studio 6.0 CD-Rom  *
\COMMON\TOOLS\PSAPI.DLL

Download Additional Developer Tools  (13Mb) 
http://msdn.microsoft.com/developer/sdk/platform.htm 

Download PSAPI.ZIP (7Kb) from this site
http://www.teamcti.com/pview/psapi.zip

Download PSAPI.DLL (18Kb) from the WinUtils site    
http://www.winutils.com/psapi.dll

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PSAPI.DLL is a Microsoft® product and to the best of my knowledge a redistributable component.
Unfortunately all my attempts to contact Microsoft® regarding redistribution of PSAPI failed. 
I would appreciate any additional information about this issue being mailed to IgorNys@writeme.com
 