Windows only: Free application Gizmo Drive mounts almost any virtual hard drive you can throw at it, including ISO, BIN, CUE, and the new virtual hard drive (VHD) images supported in Windows 7. The purpose of disk image mounting tools is generally the same: Rather than burning a new CD or DVD whenever you want to access a file inside a disk image, these applications simply mount the image as though it's a physical hard drive on your computer. We've featured several disk mounting utilities in the past, including previously mentioned ISODisk and Pismo File Mount, but Gizmo Drive may be the first we've seen that's added VHD support as well—which may come in handy for XP and Vista users once Windows 7 comes along. The application is included in a packaged install with other apps, so be sure to check only what you want to install. Gizmo Drive is a free download, Windows only.