Use your usb as ram!

There is a application named eboostr which can be used to use your pendrive as a ram but it is a trial version that gives only 2 hours time to use it when computer is on that is if you put your pc on it gives only 2 hours if you need more you need to restart the pc and again it gives 2 hours.you can download this application by googling the word "eboostr softpedia" to download from softpedia.