Blocker can be also viewed as a simple firewall. It is a tool which allows you to specify which application can connect to internet and which can not. You can also specify various conditions under which would any connections be allowed and other denied.
In order to work, Blocker must be enabled. There are 3 places in NetLimiter where you can do it:
Blocker is disabledbutton (it should switch to
Blocker is enabled).
Default blocker settings are located at
Tools->Options...->Service->Blocker. There you can select which blocker action will performed by default.
There are 3 types of actions from which you have to choose when creating a blocker rule. These are:
Deny: All connections for specified filter or application will be blocked.
Allow: All connections will be allowed.
Ask: When a connection for specified filter or application is about to be created an interactive window will pop-up. There you can decide which action should be taken upon particular connection.