>Hmm. Both fire for me. BeginRequest() first followed by PreRequestHandlerExecute() ....

So, you're saying that if you are calling a page such as Test.aspx, that BeginRequest() would be fired followed by PreRequestHandlerExecute(), applicable even in a Redirect? Basically, the following scenario would be applicable based on what you say:

http://www.domain.com/Test.aspx

1. would trigger BeginRequest()
2. would trigger PreRequestHandlerExecute()

In Test.aspx, in code beind, a line such as:

Response.Redirect("http://www.domain.com/Test2.aspx")

would then fire again:

3. BeginRequest()
4. PreRequestHandlerExecute()

Is that correct?

In my experience, 1, 2 and 3 are fired but not 4.