If your computers are able to boot from the network and if you don't want to go to each computer to set up this option, there is a simple way to achieve the booting. Each network card requires a different PXE image.
Please see here the steps you need to follow to create a bootable PXE CD.
After creating the PXE CDs (you can duplicate them according to your requirements), all you need to do is boot each computer using such a CD (most computers boot from the CD without any special BIOS configuration) and east-tec DisposeSecure will automatically load from the server.