Once Downloaded Put your U3 USB Drive in your Computer and Run The Program Called "ISOCreate.cmd" It will only take a couple of seconds and it will ask you to press any button to Continue Then Run the File Called "Universal_Customizer.exe" And it Will Search and Follow the Steps Needed, When Finished Go To This Link:
http://www.nirsoft.net/
Download Something to Your Liking And it should Be a .exe File That you download.

Copy the File to Your U3 USB Drive and Make a File Called "batch.bat". Edit the File and Type in "start %-dp0Programname.exe *%-dp0 Code Fom Website" The Programname.exe is the name of the program you downloaded remember to add .exe to the end. you should get some code on the page you downloaded the .exe file from and add that after programname.exe.

Watch Youtube Video:
http://www.youtube.com/watch?v=lFlgddjOPpw