Dell Support Center crashes with Microsoft .NET Framework Exception

Hi everybody, my Dell Support Center suddenly crashes approximately 2 hours after each booting of the PC. It gives the following Microsoft .NET Framework Exception:

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************** Ausnahmetext **************
System.ComponentModel.Win32Exception: Das System kann die angegebene Datei nicht finden
   bei System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo)
   bei System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
   bei imstrayicon.MainForm.ReadRegistry()
   bei System.Windows.Forms.Timer.OnTick(EventArgs e)
   bei System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
   bei System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Geladene Assemblys **************
mscorlib
    Assembly-Version: 2.0.0.0.
    Win32-Version: 2.0.50727.5446 (Win7SP1GDR.050727-5400).
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v2.0.50727/mscorlib.dll.
----------------------------------------
imstrayicon
    Assembly-Version: 6.0.5830.12.
    Win32-Version: 6.0.5830.12.
    CodeBase: file:///C:/Program%20Files/Dell%20Support%20Center/imstrayicon.exe.
----------------------------------------
System
    Assembly-Version: 2.0.0.0.
    Win32-Version: 2.0.50727.5442 (Win7SP1GDR.050727-5400).
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll.
----------------------------------------
System.Windows.Forms
    Assembly-Version: 2.0.0.0.
    Win32-Version: 2.0.50727.5446 (Win7SP1GDR.050727-5400).
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll.
----------------------------------------
System.Drawing
    Assembly-Version: 2.0.0.0.
    Win32-Version: 2.0.50727.5420 (Win7SP1.050727-5400).
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll.
----------------------------------------

Has anyone an idea what is causing this issue? Support Center Version 3.1.5830.12

Thanks in advance,

Martin