通过注册表屏蔽/打开菜单阴影效果功能时，必须要打开注册表子键（）

A.HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SessionManager\MemoryManagement
B.HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
C.HKEY_LOCAL_MACHINE\Software\Microsoft\InternetExplorer\Main
D.HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\InternetSettings

A.IoPageLockLimit
B.TaskbarGroupSize
C.MaxConnectionsPerServer
D.Disablepagingexecuitive

A.HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SessionManager\MemoryManagement
B.HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advnced
C.HKEY_LOCAL_MACHINE\Software\Microsoft\InternetExplorer\Main
D.HKEY_CURRENT_USER\ControlPanel\Desktop