Can I install an OS (Namely Windows 7) without using a CD/DVD Drive or Flash Drive (Basically Mount on HDD)? -

I m running XP on an older laptop right now, but I d like to test the capabilities of the current build of Windows 7. If it functions like I hope it does, I m going to install it on my MSi Wind. But I have a problem: I don t have a Disk Drive to use or a Flash Drive big enough to install Windows 7 from. Is there anyway I could somehow mount the Windows 7 ISO from another partition on my HDD to install? I read a way to do it with OSX, but I ve had no luck with a MS solution. Please help!

iF You dont already have a product key for the Beta release then you ve missed the boat. MS stopped providing them a couple of days ago.