Autonomy's Lynch again rejects HP allegations

Mike Lynch, Founder and Chairman of Autonomy Corporation, poses for photographers at an awards ceremony in central London March 13, 2008.

LONDON (Reuters) - Mike Lynch, the former head of software firm Autonomy, has written an open letter to Hewlett Packard renewing his rejection of a charge of accounting impropriety levelled at his management team by the U.S. company.

HP bought Autonomy last year for $11.1 billion (6.9 billion pounds) but shocked investors last week with an 8.8 billion write-down of the acquisition, much of which it attributed to the alleged accounting irregularities.

The letter, a copy of which was seen by Reuters, was dated November 27.

(Reporting by Andrew Callus; Editing by Alex Smith)