Is DeregisterShellHookWindow really necessary?

[User]

Hi,

Lets say "RegisterShellHookWindow" was used for "A_ScriptHwnd" window!

So, when the script exits (on ExitApp), "A_ScriptHwnd" window is automatically destroyed, thus, do I really need to use "DeregisterShellHookWindow" on script exit or does the "Shell Hook" or whatever do it automatically on "A_ScriptHwnd" destruction?

Thanks!