MsiEnumComponentCosts

function MsiEnumComponentCosts(

  hInstall: MSIHANDLE;

  szComponent: LPCTSTR;

  dwIndex: DWORD;

  iState: INSTALLSTATE;

  szDriveBuf: LPTSTR;

  var pcchDriveBuf: DWORD;

  var piCost: INT;

  var piTempCost: INT

):UINT;