Microsoft faces Scrutiny

A few months ago, Satya Nadella, the chief executive of Microsoft, hosted a technology summit meeting at the company's headquarters near Seattle with some of China's most powerful political leaders. He smiled for a photo while flanked by Xi Jinping, the country's president, and Lu Wei, its Internet czar.

On Tuesday, though, that harmony faded, as one of China's regulators said it would demand answers to new questions about Microsoft's business practices there. The announcement, related to electronic data that the government collected in an antitrust inquiry, shows how a sustained effort by Microsoft to cozy up to China's leadership has done little to relieve the regulatory challenges that it faces in the country. At best, the company is getting mixed messages.