Tim Matavz scored twice as PSV Eindhoven eased to a 4-0 victory over Rijnsburgse Boys in the fourth round of the KNVB-Beker.
The defending champions are currently top of the Eredivisie and they continued the sort of form that has taken them there.
PSV were 3-0 up after 26 minutes through Stanislav Manolev's early opener before Matavz scored twice in four minutes. Kevin Strootman rounded things off midway through the second half.
AZ Alkmaar won 4-2 at Dordrecht 90 - although they were given a scare by their lower league hosts.
Dirk Marcellis, Jozy Altidore and Viktor Elm guided AZ to a three-goal lead after 29 minutes.
However, Moussa Kalisse (62) and a Lars Veldwijk penalty eight minutes from time set up an exciting finale.
Ruud Boymans struck for the Eredivisie side in the last minute to give them some breathing space.
Ten-man Den Bosch enjoyed a narrow 1-0 win over Cambuur Leeuwarden.
Tom Van Weert scored the only goal (36) and the hosts had to play with 10 men when Tim Hofstede was sent off midway through the second half.
A side which lifted the Primera Liga title in 2000 is reported to owe the taxman around ?34million (?27.7m), and have total debts of ?100million (?81.4m).
The Spanish government are looking to crack down on outstanding tax bills and have hit Depor with an embargo on their income.
Club president Augusto Cesar Lendoiro claims efforts to try and resolve the situation are under way, but concedes that administration is a distinct possibility.
"Either we reach an agreement with the tax authority before the end of the year or we go into administration. We cannot wait any more," he said.
President of the players' union (AFE) Luis Rubiales claims it is possible that Depor, who sit bottom of the Spanish top-flight, could avoid such drastic action.
He said: "Depor have two negotiations running.
"One is to reach an agreement with the tax authority to lift the embargo and reach a medium to long-term solution. The other is to enter administration."
