Need To Correct Ds Forms?!

[kasede]

Hai,
Experios please help me.
this is my first time h1b approved .iam taking the appointment with my wife and kid on oct 9.I need to do some corrections in the ds forms.
1)can i do it?
2)till how long we can make corrections if my interview date is oct 9?
3)can i make some correction on my wife and kids's application also.
Thanks in advance.

[orion]

Yes, you can get in the system and update your information except for first 15 or 16 questions on DS-156. Same holds for your wife and kids also.