Louis xiv greatly improved the tiny colony of New France by introducing several reforms. He considered every part of France equal, unlike previous kings, and thus put his attention to improving his Canadian possessions. Here's what he did:
Louis xiv introduced the segneurial system in which there was a governor, intendant, and bishop who organized the colony along French legal lines. These ministers were all talented men who helped push forward his laws.
The governor, Frontenac, improved the military defenses. He was extremely aggressive and increased the fear the natives and British had of the French in Canada. He undertook raids and defended Quebec from a British Invasion.
The intendant, Jean-Talon, was a great economic and social organizer. He brought in more colonists to boost the low population. The filles du roi were prostitutes and orphaned girls who came to be wives for the French male colonists. He set up new ship ports and tool shops to make New France less dependent on France.
The bishop, Laval, improved education and conversions of natives. Education was reserved for the rich, who controlled the finances and laws. The university of Laval in Quebec was founded by him. Natives who were converted to Catholicism were more passive and friendly to the French.
Louis xiv made New France a solid colony that allowed the French to maintain a presence in Canada in the face of strong British forces until they finally lost the war for Canada in 1759. Without Louis xiv's improvements, the French would have lost Canada long before that time, and certainly would have been assimilated with the British colonists and disappeared by now.