1. Before you install the updated version of the FlexCell Grid control, it is necessary to uninstall the previous version (or trial version) of the control first.
2. If you are using Windows XP, Windows Installer has been already embedded in your operating system. After double-clicking FlexCell.msi, if the installer is not open, you can install by command line, something like:
   msiexec /i c:\unzipped\FlexCell.msi
3. If you are using Windows 9X/ME/NT/2000 operating system, Windows Installer may not installed in your computer yet, or the installer version is before 2.00.2600. In this case, you need to download MSI bootstrap program first, otherwise, FlexCell.msi can not be installed.
   To display Windows Installer's version, please use the following command:
   msiexec /?
   To download and install Windows Installer, please click the following link:
   Windows 95/98/Me (1667KB):
   http://www.grid2000.com/msi/InstMsiA.Exe
   Windows NT/2000 (1778KB):
   http://www.grid2000.com/msi/InstMsiW.Exe
4. Please update your program following the instructions described by "FAQ" in the help file. If you are using Visual C++, please remove any generated .h/.cpp files from your project and add the wrapper classes over again after you install the new version, then rename the member "3D" of the enum "AppearanceConstants" to "_3D".
5. FlexCell Grid Control ActiveX version can not be used with Visual Studio .NET 2003 + .NET Framework 1.1 + SP1, please download FlexCell for .NET:
   http://www.grid2000.com/download/FlexCell.NET.zip