Can you give some code? Usually it doesnt make mistake and there is no difference between 64/32 mashines. Did you re-install java for test?
There are WAY too many assumptions in this post. You apparently don't even consider that your own code can have a problem, it MUST be a problem of the runtime.
No. Post the relevant bits of the code that is failing. First we are going to assume the problem is there, because if the problem is in the runtime you're basically stuck. Its in your own best interest to want this to be a code problem that you can fix.
For the person that asked here's the code snippet:
JFileChooser chooser = new JFileChooser(); File f = new File("resources");
It never makes it to the File f = new File("resources") line.
This is very old code that has been running for 10+ years on a variety of Windows OS's. This problem didn't start till Windows 7.
For gimbal2 ... Your statement "You apparently don't even consider that your own code can have a problem" is a rude and arrogant statement. We always consider that possibility. We are NOT JVM pessimists. I come to these post for help, NOT JUDGEMENTS!!! Keep your opinions to yourself!