Excel加载项安装和设置.Net安全/信任

My environment is VS2005 C# targeting Excel 2003. I gave myself a small dose of over confidence with the installer of this add-in when I saw that an .msi project was created just for me within the solution. Needless to say, this has been the trickiest part of the whole project and I am completely stuck on how to deploy and set Full Trust to my add-in as part of the installation.My environment is VS2005 C# targeting Excel 200