I just downloaded the current version of the program on Windows 7 SP1 x64 system. It gave no indication of problems when installing.
It starts out "Java was started but returned exit code =13
I have no idea what this means or the rest of the apparent Java information.
Others seem to say it is a conflict in bit size 32 vs 64. The download said 64 bit compatible, so it should work on either. I need specific help here.