Learn how to install crystal report runtime and tackle visual studio error which requires crystal report runtime. The SAP Crystal Report is the business intelligence reporting toolcurrently marketed to small business.You can design reports both in ASP.net environment as well as Windows Forms and WPF environment. In past, SAP changed its name many times and currently it is known as SAP Crystal Reports, developer version for Microsoft Visual Studio. The reporting tool is free for developers to use it for development purpose only. What is Crystal Report Runtime To run Crystal Reports in.net environment using Visual Studio, you will need to install Crystal Report Runtime engine on Client Machine. This engine consists of libraries and functions which are needed to show the reports.