read and write log in 2 different applications

Question

Hi!
I need help please.
I have two applications, one is windows service. In which i am writing logs onto a text file.
I have second application where I have to show live log written by windows service.

At the moment, I do not have problem loading from that file. but the problem is when I am loading and showing on text file. Windows Service is still writing on file and I dont know how can I read and continue to load from that file as I am displaying all text in text field.

Any ideas how can I do that.

Regards

Muneeb