This causes some administrators to run into problems in business environments. However, Microsoft does not allow/support a parallel installation of these two product variants. The advantage: You have the installation files for the Office package on a DVD or on your hard disk and can install in one go, without downloading. However, there is also an Office Professional version for business environments, that can be installed via. Only works as long as Microsoft offers the download.
A web installer then pulls all components of Office and sets them up on a target system. Microsoft usually offers its Office suite as a click-to-run installation.