I am using for years the complete version of InstallShield Express.
And if you need full control over the installation process you
can use InstallShield Professional.
http://www.installshield.com (now belongs to Acresso Software)

>Without any doubt, I am sure I will receive a request soon to provide a better install setup for a client. The one of Visual Studio does the job but there isn't much we can control about it. What is the best reference right now as far as installation software goes?