A java question - can I have both 32 bit and 64 bit Java installed at the same time?

[hyperspeedgx]

I'd very much like to play the emulator with sounds on, but I need 64 bit Java installed for other apps (Minecraft for instance, which is a lot more stable on 64 bit). Sooo the question is, can I have both 32 bit and 64 bit Java installed at the same time without them intervening with each other? And, if I install 32 bit Java, can I choose which version of Java to use as my "preferred version" for running other apps than Jpcsp (if those apps can work in both 64 bit and 32 bit mode?).

Also, I even can't seem to get the 64 bit version of Jpcsp to work. When I try to run an ISO in it, it just comes up with some error about not being able to load "xuggler-ferry" and freezes or doesn't do anything. It will also hang in the umd browser screen. Test.txt file reports the following:

2011-04-17 21:54:36,902 [GUI] ERROR com.xuggle.ferry.JNILibraryLoader - Could not load library: xuggle-ferry; version: 3; Visit http://www.xuggle.com/xuggler/faq/ to find common solutions to this problem

System & emu specs:

- Intel Core 2 Duo T6600 2.2 Ghz
- 4 GB RAM
- Ati Mobility Radeon HD 4670 XT 1 GB
- Windows 7 Home Premium 64 bit

Jpcsp r2089 (64 bit obviously)

Both jpcsp works here 32 and 64bit,also i have both java 32 and 64bit and i have xuggle instaled too.
Try disable "Use media engine and sonicstage" on your 64bit jpcsp and see if that fix/works.