updated 3/13/2007 5:53:39 PM ET 2007-03-13T21:53:39

The U.S. Justice Department is investigating a complaint alleging that Microsoft has violated the antitrust settlement it reached with the federal government in 2002, according to a court filing discussed at a hearing Tuesday.

U.S. District Judge Colleen Kollar-Kotelly asked for more details about the complaint during a regularly scheduled review of Microsoft's compliance with the settlement.

Aaron D. Hoag, a government attorney, declined, saying the complaining company has requesting it not be identified. Microsoft's lawyers said they are cooperating with the probe but declined further comment.

The complaint is related to "middleware," or software that connects different computer programs, according to a court filing made last week. Middleware is a term that describes software for anything from Internet browsers, media players, e-mail to instant messaging programs. Microsoft has provided significant information related to the complaint, Justice said at the hearing.

Other companies have complained in the past about Microsoft's post-settlement business practices. In October 2005, after an unidentified rival complained, Microsoft backed down from a plan to tie its Windows Media Player software to digital music players that compete with Apple Inc.'s iPod.

Copyright 2007 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Discuss:

Discussion comments

,

Most active discussions

  1. votes comments
  2. votes comments
  3. votes comments
  4. votes comments

Data: Latest rates in the US

Home equity rates View rates in your area
Home equity type Today +/- Chart
$30K HELOC FICO 3.79%
$30K home equity loan FICO 4.99%
$75K home equity loan FICO 4.69%
Credit card rates View more rates
Card type Today +/- Last Week
Low Interest Cards 13.83%
13.79%
Cash Back Cards 17.80%
17.78%
Rewards Cards 17.18%
17.17%
Source: Bankrate.com