She served in the Bay of Biscay until mid-1804, and then in the Indian Ocean, based at Île de France (now Mauritius).

She then crossed to Île de France, where she undertook three cruises, capturing several large British merchantmen.

Apparently some of Henriette's guns, two 12-pounder carronades, came from the East Indiaman Admiral Aplin, which the French privateer Psyche had captured in January.

[4] On 12 October he captured Faza-Soubany (or Fazzy Soubani), of 500 tons (bm), Fryer, master, sailing from Bombay to Bengal.

[5] On 12 November Henry captured James Sybald, of ten guns and 1,000 tons (bm); she had a cargo of rice.

Lloyd's List reported that "Henrietta" had captured "the East India Company's Brig the Viper" at 9°10′N 7°5′E / 9.167°N 7.083°E / 9.167; 7.083.

During the chase, Henriette's crew had thrown four of her 6-pounder guns overboard in an attempt to lighten her and so gain speed.