Wolves 2 Kidderminster 0
The Scotland international headed Wolves into a fourth round meeting with West Ham while Kidderminster's consolation is a healthy dose of local pride and the more tangible reward of a share of the Molineux gate receipts.
And fortune - in the form of referee Matt Messias - hardly favoured the hardy Harriers as Miller turned the tie Wolves' way. His first strike - just his second of the season - was as clear as the second was dubious.
Mark Kennedy's 36th-minute free-kick was headed back across goal by Ioan Ganea and Miller applied the finishing touch. Then controversy came as Kidderminster threatened a comeback with a goal to rival Heidar Helguson's recent header for Watford against Chelsea.
Miller's cross from the right flank beat keeper Stuart Brock, hit the post and bounced along the line where defender Craig Hinton appeared to hack it clear. Play on? Not according to Mr Messias, who signalled the goal.
But, harried by Harriers, Wolves should not be kidded by just their second victory in 13 games. Miller apart, a side boasting seven changes were toothless. Romanian Ioan Ganea was given his full debut and displayed the finishing prowess of Henri Camara as he skewed his best chance well wide.
With Mark Kennedy sadly out of touch, only Miller and, in injury time, Paul Butler tested visiting keeper Brock. Manchester United await Wolves on Saturday but Dave Jones decided against giving his regular team the opportunity to warm up with a win.
Though Wolves had started with a flurry of corners, he could have been made to pay for that. The stretching Bo Henriksen could not quite convert Dean Bennett's deep free-kick, former Wolves player Graham Ward was narrowly wide from distance and Jesper Christiansen, the other half of the lively Scandinavian front line, was denied by Michael Oakes and an offside flag.
And after Miller's opener, Christiansen let the men in gold and black off as a golden chance went begging. Five yards out, he misjudged the far post and tamely turned his shot wide.
With the tidy duo of Danny Williams and Bennett impressing in midfield and a style of play bearing the hallmarks of the their manager Jan Molby, the Third Division side were never outclassed but Miller's second put Kidderminster to bed.
