Is there another way to up Tomcats’ memory in Windows other than using tomcat7w.exe?

We’re running our JSS on Windows 2012 R2, and our DB is MySQL on a separate Linux server. I’d like to up Tomcat’s memory via the JSS, but when I try and use C:Program FilesJSSTomcatin omcat7w.exe I see an error. My understanding is that since MySQL is not installed on the same server as the JSS that’s the reason. I don’t want to install MySQL on a production server just so I can up Tomcat’s memory if I don’t have to. Is there another way to do this?