No matter how your users are going to get the customized documents onto their machines, they will need some prerequisites, as follows:
Microsoft Office Service Pack One, which can be found at http://www.microsoft.com/downloads/details.aspx?familyid=9C51D3A6-7CB1-4F61-837E-5F938254FC47
The primary interop assemblies, which can be found at http://www.microsoft.com/downloads/details.aspx?familyid=3c9a983a-ac14-4125-8ba0-d36d67e0f4ad
The .NET Framework 2.0
The VSTO runtime
Those last two will also be available as standalone setup packages should you want to deploy them. The VSTO runtime redistribution setup package (VSTOR.EXE) is available on the VSTO installation CD-ROM, as is the .NET Framework 2.0 setup package (DOTNETFX.EXE). Unfortunately, the exact path to these files on the installation media was not yet finalized when this book went to press.
The .NET Framework 2.0 setup package will also be made available through Windows Update.