Bootable OmniOS USB made in Windows

from metiche @ servethehome forum

format usb FAT (not FAT32 OR NTFS)
Go Omnios and download .usb-dd file
Go to Tools for OSForensics – ImageUSB – Write an image to multiple USB Flash Drives an download imageusb
Install imageusb software
When open
Step 1 choose the usb unit you want make bootable
Step 2 SELECT THE ACTION TO BE PERFOMED. Choose option WRITE TO USB DRIVE
Step 3 SELECT THE IMAGE. when browse to find file image choose the extension option ALL FILES to find your file with extension *.usb-dd
Step 4 click WRITE and wait until the process finish.