Icons in systray

Got the solution, in the dll i had a code which was the guilty of the icons not changing.

i have : t.Priority=System.Threading.ThreadPriority.Highest; insted of t.Priority=System.Threading.ThreadPriority.Normal;

I used a thread who is changing the NotifiIcon.icon each time in a while, but even giving the Highest priority to the thread when the application its connecting and downloading the files into the hard disk, the icons wont move, they remain still till the next line is executed. Here i post an example: myDll mine=new myDll(); ThreadStart ts=new ThreadStart(this.DrawIcons); try { Thread t= new Thread(ts); t.Priority=System.Threading.ThreadPriority.Normal; this.label1.Text="Downloading newest files..."; t.Start(); // Here starts to swith icons mine.DownloadFiles(); // here will remain still till the next sentence this.buttoncancell.Enabled=false; this.label1.Text="Installing new files"; //mine.CopyFiles(); //commented , its in beta testing this.iDeadThread=1; tHilo.Join(); } catch(Exception ex){Trace.WriteLine(ex.StackTrace);}

Take a look into the System.Windows.Forms.NotifyIcon class. That should do exactly what you want.