Hello. I created a linetype using text shape. Let’s say, that my line is only AAAAAA. Now when I apply this linetype in the drawing, the lines always have a small, line before and after the characters. Actually you see this: -AAAA- . How can I delete the start and end lines. Thank you.

Check this link  http://www.afralisp.net/autocad/tutorials/complex-custom-linetypes.php maybe can help you to solve your problem.

You are right, but this may help someone else with the same problem.