Best way to make modpack with 32 bit java

[greyhat64]

I'm working on a private modpack. One of the mods in it requires 32 bit java rather than 64 bit due to some strange libraries. What would be the best way to make the modpack use 32 bit java? It only needs to work on Windows, because the mods also only supports Windows. I've tried using a batch script to run the Technic Launcher jar using 32 bit java, which works, but for some reason breaks user authentication with Mojang servers, which is a problem because this modpack is for an online server. Any ideas would be appreciated. It has to be a relatively easy solution for the end user.

[ThePagan]

which mod is that? I'd be interested in researching an answer for you

[greyhat64]

It's the Web Displays mod.