Get Operating System Version

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

Private 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

The GetVersion Api just takes one parameter of type OSVERSIONINFO. The
OSVERSIONINFO structure will contain all the details about the OS after
GetVersionApi has been successfully executed. The parameters of 
OSVERSIONINFO are 

• dwMajorVersion which gives info about the major version of the OS .This
    value is  3 for win Nt 3.51, 4 for win95/98/me and win nt4 and it is 5
    for win2k.


• dwMinorVersion ,another parameter to differentiate the OS further .It is 0
    for win 95,10 for win 98 ,98 for win ME,0   for win2k ,0 for win
    nt4 and 51 for win nt 3.51


•     dwPlatformId  .This is an important parameter which helps in
    further differentiating the varios win OS.It is 1 for win 95/ 98/ME ,and 2
    for win NT  

Once Declared we can use this in the following way

Dim os As OSVERSIONINFO 

os.dwOSVersionInfoSize = Len(os)     'Assign some
size to store the received information



Dim m As Long

Dim mv As Long

Dim pd As Long

Dim miv As Long

m = GetVersionEx(os)        'The
actual API call to GetVersionEx

mv = os.dwMajorVersion

pd = os.dwPlatformId

miv = os.dwMinorVersion

If pd = 2 Then MsgBox " OS is Windows NT" & mv & "." & miv

If pd = 1 Then

If miv = 10 Then MsgBox " OS is Windows 98 "

If miv = 0 Then MsgBox " OS is Windows 95 "

If miv = 90 Then MsgBox " OS is Windows ME "

End If

This can be quite useful if you are making OS specific Applications. Send
your comments to venky_dude@yahoo.com.
.Visit my homepage
for some cool VBcodes.