Management Mechanisms [机制] -1

The  Registry

i)  view  the regitry    with the tool-  Register.exe

ii) change the registry    should use  user interface  

if app poll the registry looking for the changes , they should use the registry's RegNotifyChangeKey function  which put an thread to sleep until 

a change occurs to the area of the registry in which they are interested

iii) the registry stores 15 kinds of values  .. the majority of  values are REG_SZ  REG_DWORD  REG_LINK   REG_BINARY

iiii) there are six  root keys  in the registry ..

HKCU   HKU  HKLM  HKP  HKCC  HKCR 

1 HKCU