OT: Make passed/encrypted folder, image, or partition for XP & OSX?

Hey so I know this is soo not the place I should be asking this, but I threw it up on Macrumors’ forums and was completely ignored so hopefully someone here on this slightly more technical forum will have an answer. :wink: Sorry again for being on the completely wrong website for this question. >.< I just don’t know where else to turn.

Making a pass protected and/or encrypted folder, image, or partition for XP and OSX?

As of writing that topic, I hit up IRC and the closest I got was a program called ‘Secure ll’ by Lexar, but it only wants to work on their thumb drives called “JumpDrives” and I wasn’t sure if I could trick it into thinking my Sandisk thumb drive was a JumpDrive so I kind of gave up on that one. So in short, I still have no idea how to go about this…

I think you’d have to use third party software.