<s>
This	O
is	O
a	O
list	O
of	O
Microsoft	O
written	O
and	O
published	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
For	O
the	O
codenames	O
that	O
Microsoft	O
gave	O
their	O
operating	B-General_Concept
systems	I-General_Concept
,	O
see	O
Microsoft	B-General_Concept
codenames	I-General_Concept
.	O
</s>
<s>
For	O
another	O
list	B-Operating_System
of	I-Operating_System
versions	I-Operating_System
of	I-Operating_System
Microsoft	I-Operating_System
Windows	I-Operating_System
,	O
see	O
,	O
List	B-Operating_System
of	I-Operating_System
Microsoft	I-Operating_System
Windows	I-Operating_System
versions	I-Operating_System
.	O
</s>
<s>
+NameDate	O
of	O
releaseWindows	O
1.01985-11-20Windows	O
2.x1987-12-09Windows	O
3.01990-05-22Windows	O
for	O
Workgroups	O
3.111993-08-11Windows	O
NT	O
3.11993-10-27Windows	O
NT	O
3.51994-09-21Windows	O
NT	O
3.511995-05-30Windows	O
951995-08-24Windows	O
NT	O
4.01996-07-31Windows	O
981998-06-25Windows	O
98	O
SE1999-05-05Windows	O
20002000-02-17Windows	O
Me2000-09-14Windows	O
NeptuneNot	O
released.Windows	O
XP	B-Application
2001-10-25Windows	O
XP	B-Application
Embedded2002-01-30Windows	O
XP	B-Application
Media	I-Application
Center	I-Application
Edition2002-10-28Windows	O
XP	B-Application
Tablet	O
PC	O
Edition2002-11-07Windows	O
XP	B-Application
64-bit	O
Edition2003-03-28Windows	O
Server	O
20032003-04-24Windows	O
Small	O
Business	O
Server	O
20032003-10-09Windows	O
XP	B-Application
Starter2004-08-11Windows	O
XP	B-Application
Professional	O
x64	O
Edition2005-04-25Windows	O
Embedded	O
for	O
Point	O
of	O
Service2005-06-06Windows	O
Server	O
2003	O
R22005-	O
??	O
-	O
?	O
</s>
