Microsoft did not provide a C# engine for Windows Script Host (WSH). CS-Script is an attempt to fill this gap. The core component of the CS-Script is a script engine that utilises the power and flexibility of the Microsoft .NET Framework. 

CS-Script, by being a scripting framework, provides a lot of development opportunities when usage of traditional (non-scripting) programming techniques requires significant development effort.

Scripting can be very beneficial when: 

• Development environment is changeable. 
  Frequent code changes are expected. 

• Application logic is simple. 
  Application is needed for a very specific isolated task. 

• Intellectual property protection is not an issue. 
  Source code is open. 

• Maintenance and deployment requirements are very strict. 
  SW solutions ideally reside in a single file and is to be deployed by simple copying of a minimal number of files. 

• Development speed is expected to be faster than usual. 
  Code is composed of relatively heavy chunks.

These are some of the advantages associated with any C# based scripting solution and particularly with CS-Script:

• Simple deployment approach: 
  just bring both script and engine file (about 50 K size) on the system that has .NET runtime installed and script can be run. 

• Portability: 
  Scripts can be run on any system, which has CLR installed. 

• Base language is a truly OO language: 
  full featured C# is used. It is called it "C# Script" but actually it is a C#. "C# Script" better represents execution nature of the system. 

• All .NET functionality is available 
  FCL, COM Interop, Remoting. 

• Easily available Debuggers and rich IDEs 
  MS .NET Studio or third-party ones. 

• Execution model within the script is the same as for any .NET application: 
  static void Main(). 

• Any script can be easily converted into application and vice versa.

• Optimised interpretation: 
  interpretation of any statement in the script is done only once even though the statement is frequently used throughout the code. 

• Script language is type safe: 
  strong typing is a luxury not available in most of the scripting languages. Dynamic typing is also available: use Object as a default type and do boxing/unboxing all the time. 

• All SW development tasks can be done in the same language. 

• GUI development for script applications becomes easy. 

• Extensibility: 
  scripting system can be extended by using the assemblies written in any .NET languages or COM components