Vsto Study Notes (3) Development of 64-bit COM add-on in office 2010
Http://www.cnblogs.com/brooks-dotnet/archive/2010/03/01/1675324.html
Use WPF, WCF, and LINQ to build an office-based solution
Http://msdn.microsoft.com/zh-cn/magazine/cc163292.aspx
Vsto + winform + WebService + WCF + WPF example
Http://www.cnblogs.com/xiyang1011/archive/2011/06/07/2074025.html
Comparison between Microsoft Visual Basic for Applications 6.0 and Microsoft Visual Studio Tools for the Microsoft Office System
Http://msdn.microsoft.com/zh-cn/library/aa159886
Excel-DNA
Http://exceldna.codeplex.com/
The following methods are available for Excel Development:
1. VB6.0 or C ++ ActiveX Development (64-bit support may be a problem)
2. Office VBA (how to protect source code)
3.. Net vsto Development (difficult to deploy, requires installation of. net, and security settings)
4. Excel-DNA (unknown)
You also need to consider the actual situation.