[stunnel-users] openssl - generating stunnel.pem - stunnel.cnf

Using Stunnel under Windows I want to create a certificate (stunnel.pem) with Openssl. According to FAQ the syntax for creating a certificate with Openssl is

openssl req -new -x509 -days 365 -nodes -config stunnel.cnf -out stunnel.pem -keyout stunnel.pem

I use openssl for windows (as part of apache-windows-http-server) .

Where do I get the file stunnel.cnf ?

Or is this file not necessary for creating a certificate ?

Thanks for help,

k.