exactement, moi je passe par les process,c'est beaucoup plus simple
#region Main
[STAThread]
static void Main()
{
try
{
  Process proc = Process.GetCurrentProcess();
Process[] processes = Process.GetProcessesByName  (proc.ProcessName);
if (processes.Length != 1)
return;
Application.Run(new From1());
}
catch()
}
{}

Franchement bien trouvé

jai un pt probleme sur ton code a ce nivo là
public void LoadRegistry()
{
this._configurationParameters.Clear();
foreach (string valueName in regKeyProduct.GetValueNames())
{
_configurationParameters.Add(valueName, (string)regKeyProduct.GetValue(valueName));
}
}

c kan il a fini le foreach
jai ce message "Additional information: Specified cast is not valid."