The deal gives it cost-per-sale banner ad space on thousands of affiliate websites and is part of its stated aim of driving 20 per cent of its business from the online channel by 2008.
Affiliate membership has already gone live in the UK, with plans to extend its reach to websites in Denmark, Norway, Sweden and Germany.
Will Cooper, chief marketing officer at Trade Doubler, said Hilton's decision to put all its eggs in one basket was a major one for the company.
"It previously ran third-party relationships on an individual level, but scrapped this last September because it was too complicated. Now any promotions it runs on banners will automatically be uploaded onto affiliate's websites."
Jerome Wise, director, channel marketing at Hilton, said: "Online technology is making things faster and more convenient for customers. Driving sales through branded websites is vital for our marketing mix."