Bingaman said "there has been an on-going investigation" of Microsoft, according to a report by Reuters news service. It remained unclear, however, whether that probe has expanded or intensified since the new allegations were leveled by Netscape Communications.
In a letter to the Justice Department last week, Netscape outlined several charges against Microsoft, which it says is unfairly leveraging its dominance in operating systems to monopolize the Web browser market. Microsoft vehemently denies the charges.
Bingaman made her comments in response to a reporter's question at a press conference on new antitrust guidelines for the health care industry. The assistant attorney general has been a key figure in previous Microsoft cases and was instrumental in blocking the company's proposed merger with Intuit last year.
Bingaman plans to retire later this year.
Related stories:
Netscape says MS plays dirty
Antitrust questions won't go
away
Net publishing faces
dilemma
Browser war ain't over till
it's over
Microsoft bags another
ISP
Microsoft turns up the
heat
Microsoft ropes in another
ISP
AT&T is latest MS ally in
Net assault
