A summary of IIS versions

A little summary table for IIS versions and operating systems in which they are included.

Please note that there is no IIS 9. Microsoft has skipped the number 9 just like jumping on Windows 10 from Windows 8.

Version

Operating System

1.0

Included with Windows NT 3.51 SP 3

2.0

Included with Windows NT Server 4.0.

3.0

Included with Windows NT Server 4.0 Service Pack 3

4.0

Self-contained download

5.0

Built-in component of Windows 2000.

5.1

Built-in component of Windows XP Professional.

6.0

Built-in component of Windows Server 2003.

7.0

Built-in component of Windows Vista and Windows Server 2008.

7.5

Built-in component of Windows 7 and Windows Server 2008 R2.

8.0

Built-in component of Windows 8 and Windows Server 2012.

8.5

Built-in component of Windows 8.1 and Windows Server 2012 R2

10

Built-in component of Windows 10 and Windows Server 2016

References

https://support.microsoft.com/en-us/kb/224609
https://en.wikipedia.org/wiki/Internet_Information_Services

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