InstallShield creates installation tools that thousands of software vendors use to distribute software to you, their customers. About 80% of the Windows installations built in the world are built with InstallShield software, so most of the applications you install on your home computer use an InstallShield product.

The key idea to understand is that InstallShield, as a company, does not build your installation. Rather, a software vendor buys an InstallShield product and uses our product to distribute software to you.   More detail...