WinPE 32&64 bit dual boot

Hello,

I am attempting to create a WinPE dual boot with both Windows 7 32 and 64 to use with imagex to image my computers.

I have no problem creating a WinPE 32 and 64 seperatly on 2 usb keys. I would like to have 1 key with 32/64 on it. I can't seem to create a boot menu prompting me 32 or 64 enviroment on 1 key.

Any clues? Tutorials hidden somewhere i can follow?

Thanks in advance.

You can put 32bit.wim and 64bit.wim on usb and create a BCD with two loader entries - one for 32 bit another for 64 bit.

To start use the WinPE 32 as base.
1) Add 64 bit .wim file to USB
2) Create second loader entry in BCD(on USB) by copying existing entry.
3) Adjust second entry (its path).

Same as creating dual-boot on HDD.