Sophos pounds the heck out of aspnet_wp.exe

I have a problem with Sophos constantly attacking the ASP.NET process aspnet_wp.exe.  This process is the process started by IIS when a ASP.NET website is accessed on the localhost.  It is part of the ASP.NET framework.  I use localhost to debug certain websites before deploying them.  When I try acccessing the web pages Sophos ties everything up for 5 - 10 minutes.  It has become quite the burdon and I need some help here.

I have added the aspnet_wp.exe in the list of files to ignore.  I have added the full hard drive path to this file as well.  I have added the path of the local website files to the exception list.

When I uninstall Sophos, it takes less then 2 seconds to display the pages on localhost.  When I install Sophos it takes 5 - 10 minutes. I have found that the user aspnet_wp.exe runs under is "ASPNET".  I don't know if that makes any difference or not.

When watching the task manager, I have found that aspnet_wp.exe gets 1/10 the CPU time SavServ.exe gets when trying to access the website. 

I am at a complete loss here and need some suggestions to get Sophos to stop picking on my local install of IIS and ASP.NET framework.

Thanks in advance.