Some antispyware companies are using deceptive practices and "hijacked" Web browsers to scare Net consumers into buying their products, a leading Internet public interest group told federal regulators on Wednesday. In a complaint filed with the Federal Trade Commission, the Center for Democracy and Technology (CDT) said software developer Mail Wiper and its marketing affiliate Seismic Entertainment Productions have misled consumers in promotions for antispyware software. The Washington, D.C.-based privacy rights group asked regulators to launch an investigation of Mail Wiper, which produces a product called "Spy Wiper," and Seismic. It wants them to block the companies from using deceptive...