Ok, I opened the Command Prompt, used "cd" to maneuver to the bin folder, and then entered [javaw.exe -server]. What resulted was the same error about a failure to open the java virtual machine.
As for identifying/copy and replacing the jvm.dll, I'm not sure exactly where the stuff should go. As it stands, Spine's jvm.dll is inside the bin/server subfolder whereas the java installation's jvm.dll is in a "client" subfolder. Are you suggesting I copy/save Spine's "server" one, and then copy and replace it with Java's "client" one? Or should I instead skip all of that and maybe move the file out of the server subfolder into the bin folder directly? Would that make a difference?