What constitutes an 'Application' in ASP.NET 4.0?

We have an ASP.NET 4 application running on Windows Server 2008 R2, IIS7.5 and several HTML-only websites on a server. I've created an application pool called 'Basic HTML' with NO managed code and put all the HTML-only websites into it. The ASP.NET 4 application is in its own 'integrated' pool.

We use several counters on perfMon including #applications running to keep an eye on things. I am scratching my head becuase I could have sworn that not too long ago the ASP.NET site was the only #application running (it was 1) even when we hit the HTML-only sites. Now it seems all of them contribute to it.

Is that normal? Has s开发者_如何学JAVAomething changed?