Wuh? Have you looked at MS income reports? Their net income in 1999 was 7.8 Billion. FY 15 (ending last june) was a bad year and they still eclipsed 1999 with 12.2 Billion and FY 1999 was MS's best year in the 90s.
Are those numbers adjusted for inflation? Going up 50% in 16 years isn't exactly spectacular.