VB6 Category

Omitted Feature/Keyword in VBScript

Array Handling

Option Base
Declaring arrays with lower bound <> 0

Collection

Add, Count, Item, Remove
Access to collections using ! character

Conditional Compilation

#Const
#If...Then...#Else

Control Flow

DoEvents
GoSub...Return, GoTo
On Error GoTo
On...GoSub, On...GoTo
Line numbers, Line labels

Conversion

CVar, CVDate
Str, Val

Data Types

All intrinsic data types except Variant
Type...End Type

Date/Time

Date statement, Time statement

DDE

LinkExecute, LinkPoke, LinkRequest, LinkSend

Debugging

Debug.Print
End, Stop

Declaration

Declare (for declaring DLLs)
Optional
ParamArray
Static

Error Handling

Erl
Error
Resume, Resume Next

File Input/Output

All traditional Basic file I/O

Financial

All financial functions

Object Manipulation

TypeOf

Objects

Clipboard
Collection

Operators

Like

Options

Deftype
Option Base
Option Compare
Option Private Module

Select Case

Expressions containing Is keyword or any comparison operators
Expressions containing a range of values using the To keyword.

Strings

Fixed-length strings
LSet, RSet
Mid Statement
StrConv

Using Objects

Collection access using !

VBScript Category

Feature/Keyword not supported in VB 6

Declarations

Class Statement
-Declares the name of a class, as well as a definition of the variables, properties, and methods that comprise the class.

Miscellaneous

Eval Function
-Evaluates an expression and returns the result
Execute Statement
- Executes one or more specified statements

Objects

RegExp Object
- Provides simple regular expression support.

Script Engine Identification

ScriptEngine
- Returns a string representing the scripting language in use.
ScriptEngineBuildVersion
- Returns the build version number of the scripting engine in use.
ScriptEngineMajorVersion
- Returns the major version number of the scripting engine in use.
ScriptEngineMinorVersion
- Returns the minor version number of the scripting engine in use