Option Explicit

Private mFN As String
Private mComments As String
Private mCompanyName As String
Private mFileDescription As String
Private mFileVersion As String
Private mInternalName As String
Private mLegalCopyright As String
Private mLegalTrademarks As String
Private mOriginalFilename As String
Private mProductName As String
Private mProductVersion As String
Private mPrivateBuild As String
Private mSpecialBuild As String

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, lpBuffer As Any, puLen As Long) As Long
Private Declare Function VerLanguageName Lib "kernel32" Alias "VerLanguageNameA" (ByVal wLang As Long, ByVal szLang As String, ByVal nSize As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)

Private Type LangCP
    wLang As Integer
    wCP As Integer
End Type

Public Property Get Comments() As String
    Comments = mComments
End Property

Public Property Get CompanyName() As String
    CompanyName = mCompanyName
End Property

Public Property Get FileName() As String
    FileName = mFN
End Property

Public Property Let FileName(ByVal NewFN As String)
    mFN = NewFN
    LoadInfo
End Property

Public Property Get FileVersion() As String
    FileVersion = mFileVersion
End Property

Public Property Get FileDescription() As String
    FileDescription = mFileDescription
End Property

Private Function GetValue(ByRef DataByte As Byte, sName As String) As String
    Dim s$, dwLen&, lPtr&, iInStr&
    VerQueryValue DataByte, sName, lPtr, dwLen
    s = String$(dwLen, 0)
    CopyMemory ByVal s, ByVal lPtr, dwLen
    iInStr = InStr(s, vbNullChar)
    If iInStr <> 0 Then s = Left$(s, iInStr - 1)
    GetValue = s
End Function

Public Property Get InternalName() As String
    InternalName = mInternalName
End Property

Public Property Get LegalCopyright() As String
    LegalCopyright = mLegalCopyright
End Property

Public Property Get LegalTrademarks() As String
    LegalTrademarks = mLegalTrademarks
End Property

Private Sub LoadInfo()
    Dim hVer&, b() As Byte, s$, dwLen&, lcp As LangCP, lPtr&, sLangStr$
    dwLen = GetFileVersionInfoSize(mFN, hVer)
    If dwLen = 0 Then Exit Sub
    ReDim b(dwLen - 1)
    GetFileVersionInfo mFN, hVer, dwLen, b(0)

    dwLen = 256
    VerQueryValue b(0), "\VarFileInfo\Translation", lPtr, dwLen
    s = String$(dwLen, 0)
    CopyMemory lcp, ByVal lPtr, 4

    sLangStr = "\StringFileInfo\"
    s = Hex$(lcp.wLang)
    sLangStr = sLangStr & String$(4 - Len(s), "0" & s
    s = Hex$(lcp.wCP)
    sLangStr = sLangStr & String$(4 - Len(s), "0" & s & "\"

    mComments = GetValue(b(0), sLangStr & "Comments"
    mCompanyName = GetValue(b(0), sLangStr & "CompanyName"
    mFileDescription = GetValue(b(0), sLangStr & "FileDescription"
    mFileVersion = GetValue(b(0), sLangStr & "FileVersion"
    mInternalName = GetValue(b(0), sLangStr & "InternalName"
    mLegalCopyright = GetValue(b(0), sLangStr & "LegalCopyright"
    mLegalTrademarks = GetValue(b(0), sLangStr & "LegalTrademarks"
    mOriginalFilename = GetValue(b(0), sLangStr & "OrgignalFilename"
    mPrivateBuild = GetValue(b(0), sLangStr & "PrivateBuild"
    mProductName = GetValue(b(0), sLangStr & "ProductName"
    mProductVersion = GetValue(b(0), sLangStr & "ProductVersion"
    mSpecialBuild = GetValue(b(0), sLangStr & "SpecialBuild"
End Sub

Public Property Get OriginalFilename() As String
    OriginalFilename = mOriginalFilename
End Property

Public Property Get PrivateBuild() As String
    PrivateBuild = mPrivateBuild
End Property

Public Property Get ProductName() As String
    ProductName = mProductName
End Property

Public Property Get ProductVersion() As String
    ProductVersion = mProductVersion
End Property

Public Property Get SpecialBuild() As String
    SpecialBuild = mSpecialBuild
End Property