Using java, indirectly...

Hi,

I have a little app that I made to make my friends and my life a little bit easier. We love playing minecraft and I run a sserver for us but sometimes my internet goes out and I want to play still but I want to play as my In Game Name.

I've found all that I need to actually run the game and it works great! I code in vb.net btw.

Anyways, I wanted to include the jportable functionality in case the computer doesn't have Java installed. However, I can't figure out how to make my app use the jportable to launch the game.

Can anyone help me on this?
If you need anymore information, let me know and I'll post ASAP.

-Dustin