handle the case that the highest .net version installed is higher than the...

handle the case that the highest .net version installed is higher than the version supported by the application

Tools/VECTOStart/StarterHelper.cs

@@ -93,6 +93,7 @@ namespace TUGraz.VECTO
 				return output.Contains("Microsoft.WindowsDesktop.App 6");
 			} catch (Exception e) {
 				Console.WriteLine(e);
+				File.AppendAllText("LOG.txt", $"{DateTime.Now} {e.Message}\n");
 			}
 
 			return false;