cscript.exe is a Microsoft (r) Console Based Script Host from Microsoft Corporation belonging to Microsoft (r) Windows Script Host.
With Cscript.exe, you can run scripts by typing the name of a script file at the command prompt. Like Microsoft Internet Explorer, Windows Script Host serves as a controller of Windows Script compliant scripting engines, but Windows Script Host has very low memory requirements. Windows Script Host is ideal for both interactive and non-interactive scripting needs, such as logon scripting and administrative scripting.