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VBScript

VBScript programs are executed within a host environment such as Windows Script Host, Internet Explorer or Internet Information Services.

Datatypes

VBScript only has one datatype: the variant.

Functions that are offered by VBScript:

The statements of VB Scripts are:

call
class
const
dim, const, public and private to declare variables.
do … loop, for … next and while … wend
erase
execute, executeGlobal (Compare with eval, unfortunately, there doesn't seem to be an equivalent of execute and executeGlobal in VBA).
exit
for … next
for each … next
function … end function and sub … end sub
if … then … elseIf … else … end if
on error
option explicit
private, public
property get|set|let
randomize to initialize the random number generator (I am sort of impressed)
rem
redim to change the size of an array
select case
set
sub
while … wend
with

VBA is a richer language than VBScript and comes with a somewhat more sophisticated development environment.

VBA is included with Microsoft Office and allows to create complete applications with those products.

VBScript, on the other hand, is not primarly aimed at developing applications, but rather to quickly script something.

Apparently, VBScripts are embeddebale in other programs using Microsoft Script Control (msscript.ocx).

Microsft on VBScript: here (2011) and here (2015)