The Increment method takes the name of a counter, adds 1 to the current value of the counter, and returns the counter's new value. If the counter doesn't exist, the method creates it and sets its value to 1.
Counters.Increment(CounterName)
Increment the value of a counter with <% Counters.Increment(CounterName) %>. Increment and display the value of a counter with <%= Counters.Increment(CounterName) %>.
To retrieve the value of a counter, use Counters.Get. To set a counter to a specific value, use Counters.Set.
The following code implements a one-line page-hit counter.
In this example, Counters.Increment increases the counter by one each time the client requests the page from the server.
--- Counters_Increment.asp ---
<HTML>
<HEAD><TITLE>One-line Page-hit Counter</TITLE></HEAD>
<BODY>
<!-- The Counters object was instantiated in Global.asa. -->
<B><%=Request.ServerVariables("URL")%></B> has been viewed <B><%=Counters.Increment("hits")%></B> time(s).
</BODY>
</HTML>