这篇关于MSDN的文章具有很好的循序渐进的方法。

This article on MSDN has a good step-by-step approach.

编辑

如果ClickOnce不适合您，则可以尝试使用Inno Setup进行安装。它是一个出色的（免费的）安装实用程序。可在此处和此链接向您展示如何创建文件关联。

EDIT
If ClickOnce is not working for you, you can try doing the installation with Inno Setup. It is an outstanding (and free) installation utility. It is available here, and this link shows you how to create file associations.

我在所有台式机上都使用Inno Setup应用程序安装。

I use Inno Setup for all of my desktop application installations.