How to prevent Webcam hijack

Hello.
My question is. How to prevent Webcam hijack.

1:
I would like to know if was to use D+ HIPS, would it offer me the same level of protection as my current HIPS program ‘Spyshelter Premium’.

2:
I want to protect against webcam & microphone hijacking yet maintain it’s usability when I need to use them.

3:
If so. How do I set it up.

Thank you.

Also, if know the name of the device object that belongs to the webcam you can add it as \Device<name of webcam device object> to the protected files section. You can use winobj from sysinternals to list all installed device objects.