Certificates for Exchange

I needed to run up a lab environment to test an Exchange 2010 hybrid.  For this I needed certificates but I didn't really want to purchase a SAN cert for what was to be a short period of testing. This came to my rescue;  https://github.com/Lone-Coder/letsencrypt-win-simple/wiki/Create-a-SAN-certificate-for-Microsoft-Exchange-2016,-2013-&-2010