by Mike Whitman (1 Submission)
Category: Windows System Services
Compatability: Visual Basic 5.0
Difficulty: Intermediate
Date Added: Wed 3rd February 2021
Rating: 
(3 Votes)
Finds the OS version of Windows 95/SP1/OSR2, Win 98/SP1/SE, Win ME, Win NT 3.51/4.0, Windows 2000, Windows XP, Windows CE 1.0/2.0/2.1/3.0. (Revised Version)
Inputs
Eg.
lblOS.Caption = GetWindowsVersion
Code Returns
O.S's specified
Side Effects
N/A
API DeclarationsPublic Declare Function GetVersionExA Lib "kernel32" (lpVersionInformation As OSVERSIONINFO) As Integer
VBcoders'IN MODULE
Public Declare Function GetVersionExA Lib "kernel32" (lpVersionInformation As OSVERSIONINFO) As Integer
Public Type OSVERSIONINFO
dwOSVersionInfoSize As Long
dwMajorVersion As Long
dwMinorVersion As Long
dwBuildNumber As Long
dwPlatformId As Long
szCSDVersion As String * 128
End Type
Public Function GetWindowsVersion() As String
Dim OSInfo As OSVERSIONINFO
Dim Ret As Integer
OSInfo.dwOSVersionInfoSize = 148
OSInfo.szCSDVersion = Space$(128)
Ret = GetVersionExA(OSInfo)
With OSInfo
Select Case .dwPlatformId
Case 1
If .dwMinorVersion < 10 Then
If .dwBuildNumber = 950 Then
GetWindowsVersion = "Windows 95"
ElseIf .dwBuildNumber > 950 Or .dwBuildNumber <= 1080 Then
GetWindowsVersion = "Windows 95 SP1"
Else
GetWindowsVersion = "Windows 95 OSR2"
End If
ElseIf .dwMinorVersion = 10 Then
If .dwBuildNumber = 1998 Then
GetWindowsVersion = "Windows 98"
ElseIf .dwBuildNumber > 1998 Or .dwBuildNumber < 2183 Then
GetWindowsVersion = "Windows 98 SP1"
ElseIf .dwBuildNumber >= 2183 Then
GetWindowsVersion = "Windows 98 SE"
End If
Else
GetWindowsVersion = "Windows ME"
End If
Case 2
If .dwMajorVersion = 3 Then
GetWindowsVersion = "Windows NT 3.51"
ElseIf .dwMajorVersion = 4 Then
GetWindowsVersion = "Windows NT 4.0"
ElseIf .dwMajorVersion = 5 Then
If .dwMinorVersion = 0 Then
GetWindowsVersion = "Windows 2000"
Else
GetWindowsVersion = "Windows XP"
End If
End If
Case 3
If .dwMajorVersion = 1 Then
GetWindowsVersion = "Windows CE 1.0"
ElseIf .dwMajorVersion = 2 Then
If .dwMinorVersion = 0 Then
GetWindowsVersion = "Windows CE 2.0"
Else
GetWindowsVersion = "Windows CE 2.1"
End If
Else
GetWindowsVersion = "Windows CE 3.0"
End If
Case Else
GetWindowsVersion = "Unable to get Windows Version"
End Select
End With
End Function
