C#.net deployment

Question

  I have a question about deploying a C#.net 2008 windows form application. The solution contains 5 project files where the processing is shared with 10 other project files. The 10 other project files meet the needs of users. (I changed 1 of the 10 project files that meet the needs of users. According to a couple of the users, the project file that I changed can be a shortcut on users desktops.)
 I am wondering what kind of files from each project do you think I need to include in the deployment  package? Is there some kind of a url you think I should use as a reference?

 I am asking this question since there is no documentation for this application at all, and i have never worked with this type if an application before.