Please identify window manufacturer and parts

A handy person from USA says:
I have a customer who has a window where the balances wont hold it up. Please see the attached pictures.
Also, I cant see how to disconnect the balance at the top where it attaches to the window frame in order to replace. I don't see a screw that would be holding it in.
Is there a way to replace the parts separately without changing the entire balance? Also I need the sliding lock piece at the top of the window on right side. The little plastic piece broke off that locks the window and keeps it from falling backwards.
User submitted photos of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting. To start out, your top tilt latches look like our 26-243 and 26-244 . Please compare our pictures and dimensions to your existing hardware to confirm. As for the balance, our Series 775 looks like it would be a good match. From your photos, it looks like the balance hooks at the top of the window. Release your bottom shoe by placing a flat screw driver where the pivot shoe goes and while releasing it hold on so not to have it spring up. Then you should be able to unhook it from the window.
How to Replace a Window Tilt Latch
How to Replace a Window Tilt Latch
VIDEO
WATCH >
Anatomy of a tilt window
Anatomy of a tilt window
VIDEO
WATCH >
How to Replace Damaged Pivot bars
How to Replace Damaged Pivot bars
VIDEO
WATCH >
How to install a S775 balance
How to install a S775 balance
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.