Harrington, whose last event on tour was a second place finish at the Omega Hong Kong Open in early December, took another extended break from tournament golf just like he did prior to last season.
This is Harrington's fifth straight appearance in Malaysian Open with his best finish coming in 2001 when he lost to Vijay Singh in a playoff.
Joining Harrington in the Far East is Spain's Miguel Angel Jimenez, who happens to be the player who topped Harrington in Hong Kong. The tour's leader in wins in 2004 with four, the 41-year-old Jimenez picked up where he left off with his victory in the tour's opener.
Both Harrington and Jimenez will look to re-establish their dominance on tour.
Although Jimenez had more wins than Harrington last year, 4-2, Harrington edged the Spaniard by one spot on the Order of Merit money list. Jimenez leads the Irishman in career victories 12-9.
Harrington, just 33 years of age, has shown great consistency over the past several years on the European Tour. He currently has a streak of five straight years with at least one win and has finished in the top-7 on the Order of Merit the past six years.
Niclas Fasth, the winner of last week's New Zealand Open, is also in the field along with the defending champion Thongchai Jaidee.
The Carlsberg Malaysian Open is co-sanctioned by the the European Tour and Asian PGA Tour. This is the fourth time in the past seven years that the event will be played at the Saujana Golf Club in Kuala Lumpur .
The purse is $1,210,000 with a first-place check of $201,000.