runtime jar not found

[tboooe]

Hi guys. I've never had this problem installing java on any of my machines before but this time I am having some issues. I am trying to install java and minimserver on another Server 2012 machine I h ave (I have 2 others). When installing java, everything seems to install ok. However, when I try to run mserver.jar I get the error "runtime jar not found". I get the same result when I use the command
java -jar mserver.jar from the minimserver/lib directory.

I can execute the command java -version just fine.

Any ideas?