Re-entering on AP while H1B visa is valid

[rollingstone]

Folks,
If H1B visa is valid (but not stamped on passport), is it possible to reenter the country on AP? I read somewhere that if H1-B visa is valid, there is no need for A.P. But does it mean if you also have A.P you cannot use it?

 

[ginnu]

Folks,
If H1B visa is valid (but not stamped on passport), is it possible to reenter the country on AP?
---------- it seems your Visa stamp is expired, you can use AP and enter on AP BEFORE AP expires
I read somewhere that if H1-B visa is valid, there is no need for A.P.
-------------- if you have Valid H1 Visa stamp then you can show visa stamp at POE and can enter US with valid visa stamp
But does it mean if you also have A.P you cannot use it?
----- if you have valid Visa stamp in passport why you need to use AP??