How do I make my app have a description in the Processes tab of the Task Manager? Changing the assembly description doesn't do it apparently. Right now the description is just it's name.

Open your application project to IDE (VB.NET editor). Select menu "Project" -> "<Project Name> Properties..." -> select tab "Application" -> press button "Assembly Information..." -> type the description in the "Title" field. Press Ok and recompile the project.