public override void Execute()
{
var solution = Dte.GetSolutionClass();
var solutionExplorer = Dte.GetSolutionExplorer();
solutionExplorer.Activate();
foreach (var project in solution.GetAllProjects())
{
Dte.SelectProject(project);
Dte.ExecuteCommand(CommandNames.UnloadProjectCommandName);
}
}
