Microsoft KB Archive/210200

= ACC2000: Sample Function to Determine Windows 95/98 or NT Version =

Article ID: 210200

Article Last Modified on 10/11/2006

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APPLIES TO


 * Microsoft Access 2000 Standard Edition

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This article was previously published under Q210200



Advanced: Requires expert coding, interoperability, and multiuser skills.



SUMMARY
This article describes how you can use the GetVersionEx Windows API function to determine the version number of the operating system (Microsoft Windows NT or Windows 95/98) running on the computer.



MORE INFORMATION
Although the GetVersion function is still supported under Win32, it has been superseded by GetVersionEx, which identifies Windows 95/98, returns more accurate information about the build of Windows, and no longer returns the version of MS-DOS.

Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements. The following example function demonstrates how to use the GetVersionEx Windows API function:   Create a module and type the following code in the Declarations section:

'==================================== ' Global Declarations '====================================

Option Explicit

Type OSVERSIONINFO dwOSVersionInfoSize As Long dwMajorVersion As Long dwMinorVersion As Long dwBuildNumber As Long dwPlatformId As Long szCSDVersion As String * 128  ' Maintenance string for PSS usage. End Type

Public Const VER_PLATFORM_WIN32s = 0 Public Const VER_PLATFORM_WIN32_WINDOWS = 1 Public Const VER_PLATFORM_WIN32_NT = 2

Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" _ (lpVersionInformation As OSVERSIONINFO) As Long

  Type the following procedure: Function SysVersions32

Dim v As OSVERSIONINFO, retval As Long Dim WindowsVersion As String, BuildVersion As String Dim PlatformName As String

v.dwOSVersionInfoSize = Len(v) retval = GetVersionEx(v)

WindowsVersion = v.dwMajorVersion & "." & v.dwMinorVersion BuildVersion = v.dwBuildNumber And &HFFFF&

Select Case v.dwPlatformId Case VER_PLATFORM_WIN32_WINDOWS PlatformName = "Windows 95/98" Case VER_PLATFORM_WIN32_NT PlatformName = "Windows NT" End Select

MsgBox "Platform: " & PlatformName & vbCrLf & _ "Version: " & WindowsVersion & vbCrLf & _ "Build: " & BuildVersion

End Function   To test this function, type the following line in the Immediate window, and then press ENTER: ?SysVersions32 Note that the message box displays the operating system's name, version, and build number. 

The GetVersionEx function fills the OSVERSIONINFO structure, which contains elements for the operating system platform, version, and build information. Note that the element dwPlatformId could be any of the VER_PLATFORM_ constants listed at the top of the example.

Additional query words: Win95 Win98 WinNT

Keywords: kbhowto kbprogramming KB210200

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