I applied through a recruiter. The process took 2 weeks. I interviewed at Microsoft in Oct 2013
Interview
I was contacted on LinkedIn by a Microsoft recruiter, and encouraged to apply to their summer internship program. I had a phone interview a couple weeks later. The interview consisted of some behavioral/background questions. However, most of the questions were puzzles, riddles and design questions. There were no programming questions.
Three rounds of interview starting with phone screening, middle round of online interview and final round of three interviews all schedule within a couple weeks time. Interviews were Microsoft recruiters followed by employees
Interview questions [1]
Question 1
If your boss asked you to build a coffee machine in a car, how would you approach it?
Standard behavioral set of questions, walked them through past projects I've worked out and answered some case-like product question, like what is your favorite product / non technical product, etc.
Apply the summer intern programme through official website. 2 rounds of interviews in total. Give general idea of what is a good PM and talk about the latest project. Deal with a small case.