Installing Windows without a DVD

Hi, I looked up another thread on this but it didn't seem to encompass my problem effectively.

I have already created my partition in bootcamp and have downloaded Windows 7 from the internet. I have this file now that doesn't work. Can you guys help me out by recommending a virtual machine or how to burn it to a dvd (I don't really have any around, so this should be a last resort if possible)

Thanks!

 

Yeah I think I'll find a DVD somewhere. Thanks.