This article describes the differences between Toolset on the Web and Toolset for Destktop.
Toolset for Desktop
This product is intended to be installed on a Network Engineer's Workstation. It includes 50+ 32-bit tools designed to help troubleshoot networking issues ad-hoc.
Toolset for Web
This product is an Orion Module intended as a complimentary product to the Orion product suite. It has a web front-end that requires IIS as well as a database back-end that require a Microsoft SQL Server installation. The product includes 5 web-based tools. This product should be installed on the server that hosts your Solarwinds Orion installation.