H4 visa extension with H1 I-797B


I got I-797B approval for my H-1B Visa extension. My wife has a current H4 stamp on her passport. In order get her H-4 Extension visa stamp, does my wife eligible for Dropbox appointment with my H-1 I-797B ?

Please clarify.


Dropbox eligibility should be checked.

H1B i797 will be needed irrespective of dropbox or interview appointment.