Thank you for the answer,really helpful to know that. I used software for Becker Active 7SL_9.18.36.613614. I downloaded it from another site,because all links here were dead. Last night,before adding this post, I have replaced the .dll files with the original ones,but nothing changed. Maybe I did not do something right?I have checked that Becker 7sl has wifi,so the .dll file should be correct. If someone has proper .dll files,please give me a link.