West Ham eased through to FA Cup round four with a routine win over Barnsley.
Early on Herita Ilunga netted his first goal for West Ham after Mark Noble's free-kick and before the break Noble made it 2-0 from the penalty spot.
Barnsley began the second half brightly and Robert Green had to be alert to turn Diego Leon's shot onto the post.
Carlton Cole's third goal in as many games settled matters, although Leon rattled the bar for Barnsley in the final moments at Upton Park.
West Ham assistant manager Steve Clarke on Kieron Dyer's comeback:
"It was good to have him back because he's had a dreadful time with injury.
"We all feel for him and he's been working ever so hard just to get back on the pitch again.
"He showed some good touches but he's not near match-fitness. We can work on that - he could be like a new signing."
Barnsley manager Simon Davey:
"We gifted them two goals in the first half and it's not like they've had to cut us open to score.
"The penalty was probably a turning point and it changed my whole half-time team talk.
"We created chances but we didn't break down their defence. To concede just before the break was crucial and it became an uphill task, and the third goal was a killer."
West Ham: Green, Faubert, Collins, Tomkins, Ilunga, Collison (Dyer 70), Noble, Mullins, Boa Morte (Etherington 66), Bellamy, Cole (Tristan 75). Subs Not Used: Lastuvka, Spector, Bowyer, Di Michele.
Booked: Faubert, Mullins.
Goals: Ilunga 10, Noble 39 pen, Cole 68.
Barnsley: Muller, Hassell, Foster, Guedes, Van Homoet, Campbell-Ryce, Colace, Leon (Butterfield 89), El Haimour, Odejayi (Coulson 86), Rigters (Adam 86). Subs Not Used: Steele, Mostto, Potter, Heslop.
Booked: Odejayi, El Haimour, Colace.
Att: 28,869
Ref: Michael Oliver (Northumberland).
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