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Windows Version Numbers

, 11 Jul 2001 CPOL
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Values returned by GetVersionEx for Windows operating systems


Sometimes you need to know a very simple thing, like "Is it Windows NT?". Some of the solutions to this problem are excellent and very thorough, but seem to be overkill. But when you try to find out what it takes to determine what OS your program is running on, then you find there is no one place to go to.

What Microsoft Says

The facts about what data are returned by GetVersionEx are scattered around Microsoft site. Here are a few articles I have tracked down:

As you will see from reading them, these articles are not complete.

Table of Windows Version Numbers

I have pulled together following table from many different sources, including Usenet news groups, searching web sites, and reading code here and on other developer sites. It is only a beginning, and if you have knowledge to share please email me and I will acknowledge your contribution.

dwPlatformID dwMajorVersion dwMinorVersion dwBuildNumber
95 1 4 0 950
95 SP1 1 4 0 > 950 && <= 1080
95 OSR2 1 4 < 10 > 1080
98 1 4 10 1998
98 SP1 1 4 10 >1998 && < 2183
98 SE 1 4 10 >= 2183
Me 1 4 90 3000
NT 3.51 2 3 51 1057
NT 4 2 4 0 1381
2000 2 5 0 2195
XP 2 5 1  
CE 1.0 3 1 0  
CE 2.0 3 2 0  
CE 2.1 3 2 1  
CE 3.0 3 3 0  

How to use this information

I have developed a simple function which uses this table to return a single value that can be used in applications. The function is called GetWinVer and it is in FontFile demo here.

Future Enhancements

Depending on what readers want to see, there are several areas for new entries:

  • Windows versions prior to Win95
  • CE versions
  • Service pack information for NT


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Hans Dietrich
Software Developer (Senior) Hans Dietrich Software
United States United States
I attended St. Michael's College of the University of Toronto, with the intention of becoming a priest. A friend in the University's Computer Science Department got me interested in programming, and I have been hooked ever since.

Recently, I have moved to Los Angeles where I am doing consulting and development work.

For consulting and custom software development, please see

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Comments and Discussions

QuestionHow to get vista version? (Home Basic, Ultimate...) Pin
Mason Hou13-Apr-07 17:50
memberMason Hou13-Apr-07 17:50 
AnswerRe: How to get vista version? (Home Basic, Ultimate...) Pin
FaxedHead1-Oct-07 19:28
memberFaxedHead1-Oct-07 19:28 

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