Install 32 and 64 bit Java in alternate locations,working both at once

I reinstalled Windows to try to fix an issue, but it did not help. I am installing my programs to an alternate drive, and would like to install Java there as well. I know about the JRE_HOME environment variable, but it can only point to 32 OR 64-bit Java. Is there any way to have both running simultaneously without need to switch the variable to the 64-bit path? I think that this does happen when I install to the default location, so how can I do that?

Yeah. 32 bit for browsers, but 64 bit has some things that keep features in other programs from functioning. But, yeah, I only use 64 bit Java for one thing :P

Maybe I will use a symbolic link instead. Works for other programs like Chrome, and still stores data on the secondary drive. I would just end the Java task, move both 32 and 64-bit to other folders, and just make symbolic links. The only thing is that some programs require to be installed after creating the links, because of unidentifiable processes needing killed.