strange iis tracing issue

We have an IW isapi application that has a timer component that was named "TIMERLOAD"  we were seeing massive number IIS traffic like "callback=TIMERLOAD.DoOnAsyncTimer&IW_AjaxID=17165722656061658&IW_SessionID'

I updated the program and renamed the component to TIMERLOAD2. but I am still seeing
"callback=TIMERLOAD.DoOnAsyncTimer&IW_AjaxID=17165722656061658&IW_SessionID"

Is there something I am missing such as an internal name that doesn't change when you change the component name???