CF 11 with IIS getting "Unable to Connect" the second time I run a .cfm

I created a subfolder named "extranet" and place cfm files in it. The first time I try "localhost/extranet/index.cfm" it runs with a CF error,. That's OK. I open the file in dreamweaver, correct the problem and retry. "Unable to Connect"

I've worked with the security properties of "extranet" making sure my username had all privileges, but no joy.

Can anyone help?