An application unhandled exception has raised:

System.ArgumentNullException: Waarde kan niet null zijn.
Parameternaam: value
bij System.String.IndexOf(String value, Int32 startIndex, Int32 count, StringComparison comparisonType)
bij Icomancer.Functions.BuildAllThumbnails(clsProgressController& ProgressController) in H:\Icomancer\Icomancer\Functions.vb:regel 1167
bij Icomancer.My.MyApplication.MyApplication_Startup(Object sender, StartupEventArgs e) in H:\Icomancer\Icomancer\ApplicationEvents.vb:regel 368
bij Microsoft.VisualBasic.ApplicationServices. WindowsFormsApplicationBase.OnStartup(StartupEventArgs eventArgs)
bij Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase. DoApplicationModel()

Please take a screen shot of this and send it to icomancer_support@lavasoftworks.com so we can figure out how to fix it.

Please run icomancer as administrator and/or whitelist it on your antivirus/security system. That should let icomancer write to the temp folder, the application data folder and the folder you want to imbue.