windows - Can you make a flashdrive read-only?

I'm trying to my flash-drive read-only so I can stick it into potentially virus infected computers and run the files enclosed.

I have discovered basically 2 ways:

1. USB Dummy Project - a program that creates a file to take up all free space.


2. How to Disable Write Access to USB Hard Disk and Flash Key Drives

I don't think the second way will work; a virus can be copied before I can run the program. Is there another way?