PdhEnumObjectItemsW

function PdhEnumObjectItemsW(

  szDataSource: LPCWSTR;

  szMachineName: LPCWSTR;

  szObjectName: LPCWSTR;

  mszCounterList: LPWSTR;

  var pcchCounterListLength: DWORD;

  mszInstanceList: LPWSTR;

  var pcchInstanceListLength: DWORD;

  dwDetailLevel: DWORD;

  dwFlags: DWORD

):PDH_STATUS;