A leading civic group is gearing to take legal action against Microsoft, the creator of the computer software blamed for the disastrous Internet crash last month. People's Solidarity for Participatory Democracy (PSPD) said it is considering filing a class action suit against the software giant for the ``Slammer'' worm which paralyzed the country?s Internet servers on Jan. 25 by unleashing huge volumes of Internet traffic. The worm was traced to a widely known flaw in Microsoft's SQL software, a Web server application. The group said it plans to build its case on a ``product liability law?? passed last July that...