iMacsoft iPhone to PC Transfer is an iPhone backup tool. It allows you to browse the contents of your iPhone and copy them to your hard drive, if needed. The application needs iTunes to work. If you don't have it installed, your iPhone will not be detected. If you intend to use this on your home computer, you probably have iTunes already. But if you want to use it on a friends house to download music to his or her computer, then you might need to download and install iTunes first.
Once your iPhone is detected, the application will show you all of its contents, including music, photos, videos, and contacts. This tool can also be used to copy contents from your computer into the iPhone and from the phone directly to your iTunes library.
Using this application is extremely easy. If you want to copy songs to your computer, simply click on "Audio" and search for the songs that you want to download, then check them and start the process. It is as easy as that.
In my testing, after installing iTunes, my iPhone was detected and I could easily download songs and videos from it.