by Riaan Aspeling (14 Submissions)
Category: Files/File Controls/Input/Output
Compatability: Visual Basic 3.0
Difficulty: Unknown Difficulty
Date Added: Wed 3rd February 2021
Rating: 
(11 Votes)
Retrieve the version of a file (EXE/DLL etc). This code should be paste into a module and just called via CheckFileVersion('Path to the Exe or DLL').
Inputs
Path to the EXE or DLL file eg. "C:\Windows\Notepad.exe"
Code Returns
A Variant containing the version of the file eg. "4.10"
API DeclarationsOption Explicit
Private Declare Function GetFileVersionInfo Lib "Version.dll" Alias "GetFileVersionInfoA" (ByVal lptstrFilename As String, ByVal dwHandle As Long, ByVal dwLen As Long, lpData As Any) As Long
Private Declare Function GetFileVersionInfoSize Lib "Version.dll" Alias "GetFileVersionInfoSizeA" (ByVal lptstrFilename As String, lpdwHandle As Long) As Long
Private Declare Function VerQueryValue Lib "Version.dll" Alias "VerQueryValueA" (pBlock As Any, ByVal lpSubBlock As String, lplpBuffer As Any, puLen As Long) As Long
Private Declare Sub MoveMemory Lib "kernel32" Alias "RtlMoveMemory" (dest As Any, ByVal Source As Long, ByVal Length As Long)
Private Type VS_FIXEDFILEINFO
dwSignature As Long
dwStrucVersionl As Integer ' e.g. = &h0000 = 0
dwStrucVersionh As Integer ' e.g. = &h0042 = .42
dwFileVersionMSl As Integer ' e.g. = &h0003 = 3
dwFileVersionMSh As Integer ' e.g. = &h0075 = .75
dwFileVersionLSl As Integer ' e.g. = &h0000 = 0
dwFileVersionLSh As Integer ' e.g. = &h0031 = .31
dwProductVersionMSl As Integer ' e.g. = &h0003 = 3
dwProductVersionMSh As Integer ' e.g. = &h0010 = .1
dwProductVersionLSl As Integer ' e.g. = &h0000 = 0
dwProductVersionLSh As Integer ' e.g. = &h0031 = .31
dwFileFlagsMask As Long ' = &h3F for version "0.42"
dwFileFlags As Long ' e.g. VFF_DEBUG Or VFF_PRERELEASE
dwFileOS As Long ' e.g. VOS_DOS_WINDOWS16
dwFileType As Long ' e.g. VFT_DRIVER
dwFileSubtype As Long ' e.g. VFT2_DRV_KEYBOARD
dwFileDateMS As Long ' e.g. 0
dwFileDateLS As Long ' e.g. 0
End Type
VBcoders'Example to use this function
' MsgBox " Notepad's Version is " & CheckFileVersion("C:\Windows\Notepad.exe")
Public Function CheckFileVersion(FilenameAndPath As Variant) As Variant
On Error GoTo HandelCheckFileVersionError
Dim lDummy As Long, lsize As Long, rc As Long
Dim lVerbufferLen As Long, lVerPointer As Long
Dim sBuffer() As Byte
Dim udtVerBuffer As VS_FIXEDFILEINFO
Dim ProdVer As String
lsize = GetFileVersionInfoSize(FilenameAndPath, lDummy)
If lsize < 1 Then Exit Function
ReDim sBuffer(lsize)
rc = GetFileVersionInfo(FilenameAndPath, 0&, lsize, sBuffer(0))
rc = VerQueryValue(sBuffer(0), "\", lVerPointer, lVerbufferLen)
MoveMemory udtVerBuffer, lVerPointer, Len(udtVerBuffer)
'**** Determine Product Version number ****
ProdVer = Format$(udtVerBuffer.dwProductVersionMSh) & "." & Format$(udtVerBuffer.dwProductVersionMSl)
CheckFileVersion = ProdVer
Exit Function
HandelCheckFileVersionError:
CheckFileVersion = "N/A"
Exit Function
End Function