I realize this is necromancy of the basest sort, but I just wanted to note for posterity and the benefit of future readers (greetings to you all, I trust you remember us fondly as you tool around in your flying cars), that the implication in the Rebellion sourcebook is that Windhook makes his escape with Dulinor, and indeed, Windhook's escape makes Dulinor's possible.
Compare, if you will:
"Catching the coverage of Strephon's assassination as he
ran down the halls, Windhoek [sic] knew immediately that his life
was effectively forfeit. He then made his way directly to the
Administrative Offices, already in an uproar, and just stood
around looking important. Eventually (after maybe 10 minutes),
a naval commander grabbed Windhook's shoulder and told him
to personally carry a bundle of orders to the Aircraft Operations
Center sealing the palace off. Windhoek took two marines
with him and made his way down 20 floors. He reached the
Aircraft Operations Center without incident. Strangely, it
seemed to be operating normally during the crisis. Some officers
stood around acting numb, but no one was doing
anything out of the ordinary.
"Windhoek decided to take advantage of the situation. He did
not deliver the orders to seal off the palace to the Aircraft Operations
Center. Instead, he joined a party of three naval officers,
gave orders to his marine companions to go on a wild goose
chase, and commandeered an air/raft. The four of them then
flew down to the Naval Central Command Complex located
underground, directly below the palace. From there, he made
his way to the starport..."
-- Rebellion Sourcebook, p. 9
"A contingency plan was implemented. Dulinor and two aides
changed into Imperial Navy uniforms. Another guard donned
a black cloak (to better appear to be Dulinor). Some of the llelish
Guard switched insignia to look like members of the
Household Cavalry. While the main body of llelish Guards barricaded
themselves in the Imperial residence on what they
knew to be a suicide mission, the assassin slipped away.
"Dulinor and his escort made their way to the Aircraft Operations
Center. Taking charge by force of will and apparent rank,
Dulinor hustled several officers, including himself and two
aides, into an air/raft and dropped the 500 meters to the palace
grounds. The air/raft entered a concealed shaft and continued
to the Naval Central Command Complex beneath the palace.
"One of Dulinor's aides reported the assassination to a guard
commander in the complex and slipped away. Dulinor and the
aides proceeded to the starport..."
--Rebellion, p. 7
The implication, gentlesophonts, is, I think clear.