I am running Citrix Secure Gateway on my Web Interface Server. When my SSL certificate expired on the site I renewed with the CA. After I installed the new certificate on IIS, I started having couple of issues.
First, the default site would not start. It was in a Stopped state and when i tried to start it, I receved the error:
" The process cannot access the file because it is being used"
This was because the default site had it's SSL port set to 443, and if you have CSG installed, by default it will use Port 443 for SSL, so change the SSL port in the Default site to 444. This resolved the issue for me and the default started with no error message.