OCS federation issue and troubleshooting with self-signed certificate

The federation needs an external trusted certificate, to allow access from everywhere. What can we do if we would like to federate only one company, and we need to cut the project cost? The solution is the self-signed certificate. How it works? Let me explain.

Good old BATCH makes trouble

I am sure that everybody knows BATCH even they are coming from Unix-like side. Well, I had a little problem with it because it did not do what I wanted (and we know always the computer is the responsible for our all mistakes). Let me share with you my experience.