<s>
The	O
original	O
Visual	B-Language
Basic	I-Language
(	O
also	O
referred	O
to	O
as	O
Classic	B-Language
Visual	I-Language
Basic	I-Language
)	O
is	O
a	O
third-generation	O
event-driven	B-Application
programming	I-Application
language	I-Application
from	O
Microsoft	O
known	O
for	O
its	O
Component	B-Application
Object	I-Application
Model	I-Application
(	O
COM	O
)	O
programming	O
model	O
first	O
released	O
in	O
1991	O
and	O
declared	O
legacy	B-Device
during	O
2008	O
.	O
</s>
<s>
Microsoft	O
intended	O
Visual	B-Language
Basic	I-Language
to	O
be	O
relatively	O
easy	O
to	O
learn	O
and	O
use	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
was	O
derived	O
from	O
BASIC	O
and	O
enables	O
the	O
rapid	O
application	O
development	O
(	O
RAD	O
)	O
of	O
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
applications	O
,	O
access	O
to	O
databases	O
using	O
Data	B-Library
Access	I-Library
Objects	I-Library
,	O
Remote	B-Device
Data	I-Device
Objects	I-Device
,	O
or	O
ActiveX	B-Library
Data	I-Library
Objects	I-Library
,	O
and	O
creation	O
of	O
ActiveX	B-Application
controls	I-Application
and	O
objects	O
.	O
</s>
<s>
A	O
programmer	B-Application
can	O
create	O
an	O
application	O
using	O
the	O
components	B-Architecture
provided	O
by	O
the	O
Visual	B-Language
Basic	I-Language
program	O
itself	O
.	O
</s>
<s>
Over	O
time	O
the	O
community	O
of	O
programmers	B-Application
developed	O
third-party	O
components	B-Architecture
.	O
</s>
<s>
Programs	O
written	O
in	O
Visual	B-Language
Basic	I-Language
can	O
also	O
make	O
use	O
of	O
the	O
Windows	B-Library
API	I-Library
,	O
which	O
requires	O
external	O
functions	O
declarations	O
.	O
</s>
<s>
On	O
April	O
8	O
,	O
2008	O
,	O
Microsoft	O
stopped	O
supporting	O
Visual	B-Language
Basic	I-Language
6.0	I-Language
IDE	B-Application
.	O
</s>
<s>
The	O
Microsoft	O
Visual	B-Language
Basic	I-Language
team	O
still	O
maintains	O
compatibility	O
for	O
Visual	B-Language
Basic	I-Language
6.0	I-Language
applications	O
through	O
its	O
"	O
It	O
Just	O
Works	O
"	O
program	O
on	O
supported	O
Windows	B-Application
operating	I-Application
systems	I-Application
.	O
</s>
<s>
In	O
2014	O
,	O
some	O
software	B-Application
developers	I-Application
still	O
preferred	O
Visual	B-Language
Basic	I-Language
6.0	I-Language
over	O
its	O
successor	O
,	O
Visual	B-Language
Basic	I-Language
.NET	I-Language
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
6.0	I-Language
was	O
selected	O
as	O
the	O
most	O
dreaded	O
programming	O
language	O
by	O
respondents	O
of	O
Stack	B-Error_Name
Overflow	I-Error_Name
's	O
annual	O
developer	B-Application
survey	O
in	O
2016	O
,	O
2017	O
,	O
and	O
2018	O
.	O
</s>
<s>
A	O
dialect	O
of	O
Visual	B-Language
Basic	I-Language
,	O
Visual	B-Language
Basic	I-Language
for	I-Language
Applications	I-Language
(	O
VBA	B-Language
)	O
,	O
is	O
used	O
as	O
a	O
macro	O
or	O
scripting	B-Language
language	I-Language
within	O
several	O
Microsoft	O
and	O
ISV	B-Application
applications	O
,	O
including	O
Microsoft	B-Application
Office	I-Application
.	O
</s>
<s>
Like	O
the	O
BASIC	O
programming	O
language	O
,	O
Visual	B-Language
Basic	I-Language
was	O
designed	O
to	O
have	O
an	O
easy	O
learning	B-General_Concept
curve	I-General_Concept
.	O
</s>
<s>
Programmers	B-Application
can	O
create	O
both	O
simple	O
and	O
complex	O
GUI	B-Application
applications	O
.	O
</s>
<s>
Programming	O
in	O
VB	O
is	O
a	O
combination	O
of	O
visually	O
arranging	O
components	B-Architecture
or	O
controls	O
on	O
a	O
form	B-Language
,	O
specifying	O
attributes	O
and	O
actions	O
for	O
those	O
components	B-Architecture
,	O
and	O
writing	O
additional	O
lines	O
of	O
code	O
for	O
more	O
functionality	O
.	O
</s>
<s>
Since	O
VB	O
defines	O
default	O
attributes	O
and	O
actions	O
for	O
the	O
components	B-Architecture
,	O
a	O
programmer	B-Application
can	O
develop	O
a	O
simple	O
program	O
without	O
writing	O
much	O
code	O
.	O
</s>
<s>
Core	O
runtime	O
libraries	O
are	O
included	O
by	O
default	O
in	O
Windows	B-Application
2000	I-Application
and	O
later	O
,	O
but	O
extended	O
runtime	O
components	B-Architecture
still	O
have	O
to	O
be	O
installed	O
.	O
</s>
<s>
Earlier	O
versions	O
of	O
Windows	B-Application
(	O
95/98/NT	O
)	O
,	O
require	O
that	O
the	O
runtime	O
libraries	O
be	O
distributed	O
with	O
the	O
executable	O
.	O
</s>
<s>
on	O
the	O
form	B-Language
(	O
window	O
)	O
.	O
</s>
<s>
Default	O
values	O
are	O
provided	O
when	O
the	O
control	O
is	O
created	O
,	O
but	O
may	O
be	O
changed	O
by	O
the	O
programmer	B-Application
.	O
</s>
<s>
Many	O
attribute	B-General_Concept
values	O
can	O
be	O
modified	O
during	O
run	O
time	O
based	O
on	O
user	O
actions	O
or	O
changes	O
in	O
the	O
environment	O
,	O
providing	O
a	O
dynamic	O
application	O
.	O
</s>
<s>
For	O
example	O
,	O
code	O
can	O
be	O
inserted	O
into	O
the	O
form	B-Language
resize	O
event	O
handler	O
to	O
reposition	O
a	O
control	O
so	O
that	O
it	O
remains	O
centered	O
on	O
the	O
form	B-Language
,	O
expands	O
to	O
fill	O
up	O
the	O
form	B-Language
,	O
etc	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
can	O
create	O
executables	O
(	O
EXE	O
files	O
)	O
,	O
ActiveX	B-Application
controls	I-Application
,	O
or	O
DLL	O
files	O
,	O
but	O
is	O
primarily	O
used	O
to	O
develop	O
Windows	B-Application
applications	I-Application
and	O
to	O
interface	O
with	O
database	O
systems	O
.	O
</s>
<s>
Controls	O
provide	O
the	O
basic	O
functionality	O
of	O
the	O
application	O
,	O
while	O
programmers	B-Application
can	O
insert	O
additional	O
logic	O
within	O
the	O
appropriate	O
event	O
handlers	O
.	O
</s>
<s>
When	O
the	O
user	O
selects	O
an	O
element	O
,	O
an	O
event	O
handler	O
is	O
called	O
that	O
executes	O
code	O
that	O
the	O
programmer	B-Application
created	O
to	O
perform	O
the	O
action	O
for	O
that	O
list	O
item	O
.	O
</s>
<s>
Alternatively	O
,	O
a	O
Visual	B-Language
Basic	I-Language
component	O
can	O
have	O
no	O
user	O
interface	O
,	O
and	O
instead	O
provide	O
ActiveX	B-Application
objects	I-Application
to	O
other	O
programs	O
via	O
Component	B-Application
Object	I-Application
Model	I-Application
(	O
COM	O
)	O
.	O
</s>
<s>
This	O
allows	O
for	O
server-side	B-Application
processing	O
or	O
an	O
add-in	O
module	O
.	O
</s>
<s>
The	O
runtime	O
recovers	O
unused	O
memory	O
using	O
reference	B-General_Concept
counting	I-General_Concept
,	O
which	O
depends	O
on	O
variables	O
passing	O
out	O
of	O
scope	O
or	O
being	O
set	O
to	O
Nothing	O
,	O
avoiding	O
the	O
problem	O
of	O
memory	B-Error_Name
leaks	I-Error_Name
that	O
are	O
possible	O
in	O
other	O
languages	O
.	O
</s>
<s>
There	O
is	O
a	O
large	O
library	O
of	O
utility	O
objects	O
,	O
and	O
the	O
language	O
provides	O
basic	O
support	O
for	O
object-oriented	B-Language
programming	I-Language
.	O
</s>
<s>
Unlike	O
many	O
other	O
programming	O
languages	O
,	O
Visual	B-Language
Basic	I-Language
is	O
generally	O
not	O
case-sensitive	O
—	O
though	O
it	O
transforms	O
keywords	O
into	O
a	O
standard	O
case	O
configuration	O
and	O
forces	O
the	O
case	O
of	O
variable	O
names	O
to	O
conform	O
to	O
the	O
case	O
of	O
the	O
entry	O
in	O
the	O
symbol	O
table	O
.	O
</s>
<s>
The	O
Visual	B-Language
Basic	I-Language
compiler	O
is	O
shared	O
with	O
other	O
Visual	B-Application
Studio	I-Application
languages	O
(	O
C	O
,	O
C++	O
)	O
.	O
</s>
<s>
Nevertheless	O
,	O
by	O
default	O
the	O
restrictions	O
in	O
the	O
IDE	B-Application
do	O
not	O
allow	O
creation	O
of	O
some	O
targets	O
(	O
Windows	B-Application
model	O
DLLs	O
)	O
and	O
threading	O
models	O
,	O
but	O
over	O
the	O
years	O
,	O
developers	B-Application
have	O
bypassed	O
these	O
restrictions	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
builds	O
upon	O
the	O
characteristics	O
of	O
BASIC	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
supports	O
user-added	O
line	O
numbers	O
through	O
version	O
6	O
,	O
or	O
later	O
.	O
</s>
<s>
This	O
is	O
because	O
the	O
Boolean	O
data	O
type	O
is	O
stored	O
as	O
a	O
two	B-General_Concept
's	I-General_Concept
complement	I-General_Concept
signed	O
integer	O
.	O
</s>
<s>
This	O
is	O
apparent	O
when	O
performing	O
a	O
(	O
bitwise	O
)	O
Not	O
operation	O
on	O
the	O
two	B-General_Concept
's	I-General_Concept
complement	I-General_Concept
value	O
0	O
,	O
which	O
returns	O
the	O
two	B-General_Concept
's	I-General_Concept
complement	I-General_Concept
value	O
−1	O
,	O
in	O
other	O
words	O
True	O
=	O
Not	O
False	O
.	O
</s>
<s>
This	O
is	O
unlike	O
some	O
C-derived	O
languages	O
(	O
such	O
as	O
Perl	B-Language
)	O
,	O
which	O
have	O
separate	O
logical	O
and	O
bitwise	O
operators	O
.	O
</s>
<s>
Arrays	O
are	O
declared	O
by	O
specifying	O
the	O
upper	O
and	O
lower	O
bounds	O
in	O
a	O
way	O
similar	O
to	O
Pascal	B-Application
and	O
Fortran	B-Application
.	O
</s>
<s>
Use	O
of	O
the	O
Option	O
Base	O
statement	O
can	O
lead	O
to	O
confusion	O
when	O
reading	O
Visual	B-Language
Basic	I-Language
code	O
and	O
is	O
best	O
avoided	O
by	O
always	O
explicitly	O
specifying	O
the	O
lower	O
bound	O
of	O
the	O
array	O
.	O
</s>
<s>
This	O
uncommon	O
trait	O
does	O
exist	O
in	O
Visual	B-Language
Basic	I-Language
.NET	I-Language
but	O
not	O
in	O
VBScript	B-Application
.	O
</s>
<s>
Relatively	O
strong	O
integration	O
with	O
the	O
Windows	B-Application
operating	I-Application
system	I-Application
and	O
the	O
Component	B-Application
Object	I-Application
Model	I-Application
.	O
</s>
<s>
By	O
default	O
,	O
if	O
a	O
variable	O
has	O
not	O
been	O
declared	O
or	O
if	O
no	O
type	O
declaration	O
character	O
is	O
specified	O
,	O
the	O
variable	O
is	O
of	O
type	O
Variant	B-Language
.	O
</s>
<s>
There	O
are	O
12	O
Deftype	O
statements	O
in	O
total	O
offered	O
by	O
Visual	B-Language
Basic	I-Language
6.0	I-Language
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
1.0	O
was	O
introduced	O
in	O
1991	O
.	O
</s>
<s>
The	O
drag	O
and	O
drop	O
design	O
for	O
creating	O
the	O
user	O
interface	O
is	O
derived	O
from	O
a	O
prototype	O
form	B-Language
generator	O
developed	O
by	O
Alan	O
Cooper	O
and	O
his	O
company	O
called	O
Tripod	O
.	O
</s>
<s>
Microsoft	O
contracted	O
with	O
Cooper	O
and	O
his	O
associates	O
to	O
develop	O
Tripod	O
into	O
a	O
programmable	O
form	B-Language
system	O
for	O
Windows	B-Application
3.0	I-Application
,	O
under	O
the	O
code	O
name	O
Ruby	B-Language
(	O
no	O
relation	O
to	O
the	O
later	O
Ruby	B-Language
programming	I-Language
language	I-Language
)	O
.	O
</s>
<s>
Microsoft	O
decided	O
to	O
combine	O
Ruby	B-Language
with	O
the	O
Basic	O
language	O
to	O
create	O
Visual	B-Language
Basic	I-Language
.	O
</s>
<s>
The	O
Ruby	B-Language
interface	O
generator	O
provided	O
the	O
"	O
visual	O
"	O
part	O
of	O
Visual	B-Language
Basic	I-Language
,	O
and	O
this	O
was	O
combined	O
with	O
the	O
"	O
EB	O
"	O
Embedded	O
BASIC	O
engine	O
designed	O
for	O
Microsoft	O
's	O
abandoned	O
"	O
Omega	O
"	O
database	O
system	O
.	O
</s>
<s>
Ruby	B-Language
also	O
provided	O
the	O
ability	O
to	O
load	O
dynamic	O
link	O
libraries	O
containing	O
additional	O
controls	O
(	O
then	O
called	O
"	O
gizmos	O
"	O
)	O
,	O
which	O
later	O
became	O
the	O
VBX	B-Language
interface	O
.	O
</s>
<s>
Thunder	O
persisted	O
through	O
to	O
the	O
last	O
release	O
of	O
Visual	B-Language
Basic	I-Language
in	O
the	O
name	O
of	O
the	O
primary	O
internal	O
function	O
,	O
"	O
ThunderRTMain	O
"	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
1.0	O
(	O
May	O
1991	O
)	O
was	O
released	O
for	O
Windows	B-Application
at	O
the	O
Comdex/Windows	O
World	O
trade	O
show	O
in	O
Atlanta	O
,	O
Georgia	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
1.0	O
for	O
DOS	B-Device
was	O
released	O
in	O
September	O
1992	O
.	O
</s>
<s>
The	O
language	O
itself	O
was	O
not	O
quite	O
compatible	O
with	O
Visual	B-Language
Basic	I-Language
for	I-Language
Windows	I-Language
,	O
as	O
it	O
was	O
the	O
next	O
version	O
of	O
Microsoft	O
's	O
DOS-based	O
BASIC	O
compilers	O
,	O
QuickBASIC	B-Language
and	O
BASIC	O
Professional	O
Development	O
System	O
.	O
</s>
<s>
The	O
interface	O
used	O
a	O
text-based	B-Application
user	I-Application
interface	I-Application
,	O
using	O
extended	B-Protocol
ASCII	I-Protocol
characters	O
to	O
simulate	O
the	O
appearance	O
of	O
a	O
GUI	B-Application
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
2.0	O
was	O
released	O
in	O
November	O
1992	O
.	O
</s>
<s>
The	O
programming	B-Application
environment	I-Application
was	O
easier	O
to	O
use	O
,	O
and	O
its	O
speed	O
was	O
improved	O
.	O
</s>
<s>
Notably	O
,	O
forms	O
became	O
instantiable	O
objects	O
,	O
thus	O
laying	O
the	O
foundational	O
concepts	O
of	O
class	O
modules	O
as	O
were	O
later	O
offered	O
in	O
VB4	B-Language
.	O
</s>
<s>
VB3	B-Language
included	O
version	O
1.1	O
of	O
the	O
Jet	B-Application
Database	I-Application
Engine	I-Application
that	O
could	O
read	O
and	O
write	O
Jet	B-Application
(	O
or	O
Access	O
)	O
1.x	O
databases	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
4.0	O
(	O
August	O
1995	O
)	O
was	O
the	O
first	O
version	O
that	O
could	O
create	O
32-bit	O
as	O
well	O
as	O
16-bit	B-Library
Windows	I-Library
programs	O
.	O
</s>
<s>
It	O
also	O
introduced	O
the	O
ability	O
to	O
write	O
non-GUI	O
classes	O
in	O
Visual	B-Language
Basic	I-Language
.	O
</s>
<s>
With	O
VB4	B-Language
the	O
language	O
was	O
separated	O
from	O
the	O
GUI	B-Application
library	O
,	O
and	O
made	O
available	O
as	O
VBA	B-Language
,	O
in	O
which	O
form	B-Language
it	O
was	O
embedded	O
with	O
the	O
Office	O
95	O
suite	O
.	O
</s>
<s>
To	O
ease	O
migration	O
of	O
Office	O
macros	O
and	O
scripts	O
,	O
features	O
from	O
WordBasic	B-Language
,	O
Excel	O
Basic	O
and	O
Access	O
Basic	O
were	O
incorporated	O
into	O
the	O
language	O
.	O
</s>
<s>
Incompatibilities	O
between	O
different	O
releases	O
of	O
VB4	B-Language
caused	O
installation	O
and	O
operation	O
problems	O
.	O
</s>
<s>
While	O
previous	O
versions	O
of	O
Visual	B-Language
Basic	I-Language
had	O
used	O
VBX	B-Language
controls	O
,	O
Visual	B-Language
Basic	I-Language
now	O
used	O
OLE	O
controls	O
(	O
with	O
files	O
names	O
ending	O
in	O
.OCX	O
)	O
instead	O
.	O
</s>
<s>
These	O
were	O
later	O
to	O
be	O
named	O
ActiveX	B-Application
controls	I-Application
.	O
</s>
<s>
With	O
version	O
5.0	O
(	O
February	O
1997	O
)	O
,	O
Microsoft	O
released	O
Visual	B-Language
Basic	I-Language
exclusively	O
for	O
32-bit	O
versions	O
of	O
Windows	B-Application
.	O
</s>
<s>
Programmers	B-Application
who	O
preferred	O
to	O
write	O
16-bit	B-Device
programs	O
were	O
able	O
to	O
import	O
programs	O
written	O
in	O
Visual	B-Language
Basic	I-Language
4.0	O
to	O
Visual	B-Language
Basic	I-Language
5.0	O
,	O
and	O
Visual	B-Language
Basic	I-Language
5.0	O
programs	O
can	O
easily	O
be	O
converted	O
to	O
Visual	B-Language
Basic	I-Language
4.0	O
.	O
</s>
<s>
Visual	O
Basic	O
5.0	O
also	O
introduced	O
the	O
ability	O
to	O
create	O
custom	O
user	O
controls	O
,	O
as	O
well	O
as	O
the	O
ability	O
to	O
compile	O
to	O
native	O
Windows	B-Application
executable	O
code	O
,	O
speeding	O
up	O
calculation-intensive	O
code	O
execution	O
.	O
</s>
<s>
A	O
free	O
,	O
downloadable	O
Control	O
Creation	O
Edition	O
was	O
also	O
released	O
for	O
creation	O
of	O
ActiveX	B-Application
controls	I-Application
.	O
</s>
<s>
It	O
was	O
also	O
used	O
as	O
an	O
introductory	O
form	B-Language
of	O
Visual	B-Language
Basic	I-Language
:	O
a	O
regular	O
.exe	O
project	O
could	O
be	O
created	O
and	O
run	O
in	O
the	O
IDE	B-Application
,	O
but	O
not	O
compiled	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
6.0	I-Language
(	O
Mid-1998	O
)	O
improved	O
in	O
a	O
number	O
of	O
areas	O
including	O
the	O
ability	O
to	O
create	O
web-based	O
applications	O
.	O
</s>
<s>
Mainstream	O
Support	O
for	O
Microsoft	B-Language
Visual	I-Language
Basic	I-Language
6.0	I-Language
ended	O
on	O
March	O
31	O
,	O
2005	O
,	O
and	O
Extended	O
support	O
ended	O
in	O
March	O
2008	O
.	O
</s>
<s>
However	O
,	O
primary	O
components	B-Architecture
of	O
the	O
Visual	B-Language
Basic	I-Language
6	I-Language
development	O
environment	O
run	O
in	O
all	O
32-bit	O
versions	O
of	O
Windows	B-Application
up	O
to	O
and	O
including	O
Windows	B-Application
11	I-Application
.	O
</s>
<s>
Microsoft	O
has	O
developed	O
derivatives	O
of	O
Visual	B-Language
Basic	I-Language
for	O
use	O
in	O
scripting	B-Language
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
itself	O
is	O
derived	O
heavily	O
from	O
BASIC	O
,	O
and	O
subsequently	O
has	O
been	O
replaced	O
with	O
a	O
.NET	B-Application
platform	I-Application
version	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
for	I-Language
Applications	I-Language
(	O
VBA	B-Language
)	O
is	O
included	O
in	O
many	O
Microsoft	O
applications	O
(	O
Microsoft	B-Application
Office	I-Application
)	O
,	O
and	O
also	O
in	O
many	O
third-party	O
products	O
like	O
SolidWorks	B-Application
,	O
AutoCAD	B-Algorithm
,	O
WordPerfect	B-Application
Office	O
2002	O
,	O
ArcGIS	B-Application
,	O
Sage	O
300	O
ERP	O
,	O
and	O
Business	O
Objects	O
Desktop	O
Intelligence	O
.	O
</s>
<s>
There	O
are	O
small	O
inconsistencies	O
in	O
the	O
way	O
VBA	B-Language
is	O
implemented	O
in	O
different	O
applications	O
,	O
but	O
it	O
is	O
largely	O
the	O
same	O
language	O
as	O
Visual	B-Language
Basic	I-Language
6.0	I-Language
and	O
uses	O
the	O
same	O
runtime	O
library	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
development	O
ended	O
with	O
6.0	O
,	O
but	O
in	O
2010	O
Microsoft	O
introduced	O
VBA	B-Language
7	O
to	O
provide	O
extended	O
features	O
and	O
add	O
64-bit	O
support	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
.NET	I-Language
is	O
Microsoft	O
's	O
designated	O
successor	O
to	O
Visual	B-Language
Basic	I-Language
6.0	I-Language
,	O
and	O
is	O
part	O
of	O
Microsoft	O
's	O
.NET	B-Application
platform	I-Application
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
.NET	I-Language
compiles	O
and	O
runs	O
using	O
the	O
.NET	B-Application
Framework	I-Application
or	O
its	O
successor	O
,	O
.NET	B-Application
.	O
</s>
<s>
It	O
is	O
not	O
backwards	B-General_Concept
compatible	I-General_Concept
with	O
Visual	B-Language
Basic	I-Language
6.0	I-Language
.	O
</s>
<s>
VBScript	B-Application
is	O
the	O
default	O
language	O
for	O
Active	B-General_Concept
Server	I-General_Concept
Pages	I-General_Concept
.	O
</s>
<s>
It	O
can	O
be	O
used	O
in	O
Windows	B-Application
scripting	B-Language
and	O
client-side	O
web	O
page	O
scripting	B-Language
.	O
</s>
<s>
It	O
resembles	O
VB	O
in	O
syntax	O
,	O
but	O
is	O
a	O
separate	O
language	O
—	O
executed	O
by	O
vbscript.dll	O
instead	O
of	O
the	O
VB	O
runtime	O
.	O
</s>
<s>
ASP	O
and	O
VBScript	B-Application
should	O
not	O
be	O
confused	O
with	O
ASP.NET	B-Application
,	O
which	O
uses	O
the	O
.NET	B-Application
Framework	I-Application
for	O
compiled	O
web	O
pages	O
.	O
</s>
<s>
OpenOffice	B-Operating_System
Basic	I-Operating_System
is	O
a	O
Visual	B-Language
Basic	I-Language
compatible	O
interpreter	O
that	O
originated	O
in	O
StarOffice	B-Application
office	O
suite	O
.	O
</s>
<s>
Gambas	B-Language
is	O
a	O
Visual	B-Language
Basic	I-Language
inspired	O
free	B-Application
software	I-Application
programming	O
language	O
for	O
the	O
Linux	O
operating	O
system	O
.	O
</s>
<s>
It	O
is	O
not	O
a	O
clone	O
of	O
Visual	B-Language
Basic	I-Language
,	O
but	O
it	O
does	O
have	O
the	O
ability	O
to	O
convert	O
Visual	B-Language
Basic	I-Language
programs	O
to	O
Gambas	B-Language
.	O
</s>
<s>
The	O
VisualFBEditor	O
IDE	B-Application
for	O
FreeBASIC	B-Language
is	O
also	O
similar	O
.	O
</s>
<s>
WinWrap	B-Language
Basic	I-Language
is	O
a	O
third-party	O
VBA	B-Language
variant	B-Language
used	O
with	O
various	O
software	O
,	O
and	O
available	O
for	O
programmers	B-Application
to	O
use	O
to	O
build	O
a	O
macro	O
facility	O
into	O
their	O
programs	O
.	O
</s>
<s>
LotusScript	B-Language
is	O
a	O
VBA	B-Language
variant	B-Language
available	O
in	O
Lotus	B-Operating_System
SmartSuite	I-Operating_System
and	O
Lotus	B-Operating_System
Notes	I-Operating_System
.	O
</s>
<s>
Later	O
versions	O
of	O
Corel	B-Application
WordPerfect	I-Application
Office	I-Application
implement	O
access	O
to	O
VBA	B-Language
as	O
one	O
of	O
the	O
macro/scripting	O
languages	O
,	O
the	O
other	O
major	O
ones	O
being	O
CorelScript	O
and	O
PerfectScript	O
.	O
</s>
<s>
Earlier	O
versions	O
of	O
Microsoft	B-Application
Word	I-Application
use	O
a	O
variant	B-Language
of	O
Visual	B-Language
Basic	I-Language
called	O
WordBasic	B-Language
.	O
</s>
<s>
Earlier	O
versions	O
of	O
Visual	B-Language
Basic	I-Language
(	O
prior	O
to	O
version	O
5	O
)	O
compiled	O
the	O
code	O
to	O
P-Code	B-Application
only	O
.	O
</s>
<s>
The	O
P-Code	B-Application
is	O
interpreted	O
by	O
the	O
language	O
runtime	O
.	O
</s>
<s>
The	O
benefits	O
of	O
P-Code	B-Application
include	O
portability	O
and	O
smaller	O
binary	O
file	O
sizes	O
,	O
but	O
it	O
usually	O
slows	O
down	O
the	O
execution	O
,	O
since	O
having	O
a	O
runtime	O
adds	O
an	O
additional	O
layer	O
of	O
interpretation	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
applications	O
require	O
Microsoft	O
Visual	B-Language
Basic	I-Language
runtime	O
MSVBVMxx.DLL	O
,	O
where	O
xx	O
is	O
the	O
relevant	O
version	O
number	O
,	O
either	O
50	O
or	O
60	O
.	O
</s>
<s>
MSVBVM60.dll	O
comes	O
as	O
standard	O
with	O
Windows	B-Application
in	O
all	O
editions	O
from	O
Windows	B-Application
98	O
to	O
Windows	B-Operating_System
10	I-Operating_System
(	O
some	O
editions	O
of	O
Windows	B-Application
7	O
do	O
not	O
include	O
it	O
)	O
.	O
</s>
<s>
A	O
Windows	B-Application
95	O
machine	O
would	O
however	O
require	O
inclusion	O
with	O
the	O
installer	O
of	O
whichever	O
DLL	O
was	O
needed	O
by	O
the	O
program	O
.	O
</s>
<s>
Visual	B-Language
Basic	I-Language
5	I-Language
and	O
6	O
can	O
compile	O
code	O
to	O
either	O
native	O
or	O
P-Code	B-Application
but	O
in	O
either	O
case	O
the	O
runtime	O
is	O
still	O
required	O
for	O
built	O
in	O
functions	O
and	O
forms	O
management	O
.	O
</s>
<s>
Criticisms	O
levelled	O
at	O
Visual	B-Language
Basic	I-Language
editions	O
prior	O
to	O
VB.NET	B-Language
include	O
:	O
</s>
<s>
All	O
versions	O
of	O
the	O
Visual	B-Language
Basic	I-Language
development	O
environment	O
from	O
1.0	O
to	O
6.0	O
were	O
retired	O
by	O
Microsoft	O
by	O
2008	O
,	O
and	O
are	O
therefore	O
no	O
longer	O
supported	O
.	O
</s>
<s>
The	O
associated	O
runtime	O
environments	O
are	O
also	O
unsupported	O
,	O
except	O
for	O
the	O
Visual	B-Language
Basic	I-Language
6	I-Language
core	O
runtime	O
environment	O
,	O
which	O
Microsoft	O
officially	O
supports	O
for	O
the	O
lifetime	O
of	O
Windows	B-Application
8	I-Application
,	O
Windows	B-Operating_System
10	I-Operating_System
and	O
Windows	B-Application
11	I-Application
.	O
</s>
<s>
Third	O
party	O
components	B-Architecture
that	O
shipped	O
with	O
Visual	B-Application
Studio	I-Application
6.0	O
are	O
not	O
included	O
in	O
this	O
support	O
statement	O
.	O
</s>
<s>
Some	O
legacy	B-Device
Visual	B-Language
Basic	I-Language
components	B-Architecture
may	O
still	O
work	O
on	O
newer	O
platforms	O
,	O
despite	O
being	O
unsupported	O
by	O
Microsoft	O
and	O
other	O
vendors	O
.	O
</s>
<s>
Documentation	O
for	O
Visual	B-Language
Basic	I-Language
6.0	I-Language
,	O
its	O
application	O
programming	O
interface	O
and	O
tools	O
is	O
best	O
covered	O
in	O
the	O
last	O
MSDN	O
release	O
before	O
Visual	B-Application
Studio.NET	I-Application
2002	O
.	O
</s>
<s>
Later	O
releases	O
of	O
MSDN	O
focused	O
on	O
.NET	B-Application
development	O
and	O
had	O
significant	O
parts	O
of	O
the	O
Visual	B-Language
Basic	I-Language
6.0	I-Language
programming	O
documentation	O
removed	O
as	O
the	O
language	O
evolved	O
,	O
and	O
support	O
for	O
older	O
code	O
ended	O
.	O
</s>
<s>
Although	O
vendor	O
support	O
for	O
Visual	B-Language
Basic	I-Language
6	I-Language
has	O
ended	O
,	O
and	O
the	O
product	O
has	O
never	O
been	O
supported	O
on	O
the	O
latest	O
versions	O
of	O
Windows	B-Application
,	O
key	O
parts	O
of	O
the	O
environment	O
still	O
work	O
on	O
newer	O
platforms	O
.	O
</s>
<s>
It	O
is	O
possible	O
to	O
get	O
a	O
subset	O
of	O
the	O
development	O
environment	O
working	O
on	O
32-bit	O
and	O
64-bit	O
versions	O
of	O
Windows	B-Application
Vista	O
,	O
Windows	B-Application
7	O
,	O
Windows	B-Application
8	I-Application
,	O
Windows	B-Operating_System
10	I-Operating_System
and	O
Windows	B-Application
11	I-Application
.	O
</s>
<s>
This	O
snippet	O
makes	O
a	O
counter	O
that	O
moves	O
up	O
1	O
every	O
second	O
(	O
a	O
label	O
and	O
a	O
timer	O
control	O
need	O
to	O
be	O
added	O
to	O
the	O
form	B-Language
for	O
this	O
to	O
work	O
)	O
until	O
the	O
form	B-Language
is	O
closed	O
or	O
an	O
integer	B-Error_Name
overflow	I-Error_Name
occurs	O
:	O
</s>
