DoubleClick is seeking suitors and is in talks with Microsoft, among others, writes Reuters, citing a Wall Street Journal article published Wednesday.

Morgan Stanley is helping DoubleClick to explore its options. The company is now majority-owned by San Francisco private equity firm Hellman & Friedman. The firm apparently wants a minimum of $2 billion for DoubleClick.

Such a price tag could amount to a hefty return for the private equity firm, which took DoubleClick private in 2005 in a $1.1 billion deal. Founded in 1996, DoubleClick in October 2004 hired Lazard Freres & Co. to explore the sale of part or all of its operations.

DoubleClick had about $150 million in revenue last year, according to a source.