VBScript Language Features:

The language of VBScript is modeled on Visual Basic, and therefore can be reviewed using similar categories: procedures, control structures, constants, variables, user interaction, array handling, date/time functions, error handling, mathematical functions,regular expressions, string manipulation, objects,  and so on.
A "procedure" is the main construct in VBScript for separating code into smaller modules. VBScript distinguishes between a function, which can return a result in an assignment statement, and a subroutine, which cannot. Parameters are positional, and can be passed by value or by reference.
Names are not case-sensitive. However, it is considered a best practice of VBScript style to be consistent and to capitalize judiciously