获取EXe版本信息

function GetVersionString(FileName: string): string;
    var
    VerInfoSize: DWORD;
    VerInfo: Pointer;
    VerValueSize: DWORD;
    Dummy: DWORD;
    VerValue: PVSFixedFileInfo;
    begin
    Result := '';
    VerInfoSize := GetFileVersionInfoSize(PChar(FileName), Dummy);
    if VerInfoSize = 0 then Exit;
    GetMem(VerInfo, VerInfoSize);
    GetFileVersionInfo(PChar(FileName), 0, VerInfoSize, VerInfo);
    VerQueryValue(VerInfo, '\', Pointer(VerValue), VerValueSize);
    Result := IntToStr(VerValue^.dwFileVersionMS shr 16) + '.' +
    IntToStr(VerValue^.dwFileVersionMS and $FFFF) + '.' +
    IntToStr(VerValue^.dwFileVersionLS shr 16) + '.' +
    IntToStr(VerValue^.dwFileVersionLS and $FFFF);
    FreeMem(VerInfo);
    end;