No, it isn't a virus. Look at the comments on the download link, loads of people have used it and it worked fine. Scan it with your anti-virus program before you run it if you're suspicious.
Or, if you still really don't want to use it for some stupid reason, I suggest acquiring a better version of Windows 7 or just switching to a decent OS. Any Linux distro will do. OSx86 makes a fun project, too.