Microsoft is close to buying search engine Powerset for $100 million or more, according to technology Web site VentureBeat.
VentureBeat said the deal for the Silicon Valley company, which specializes in semantic, or natural-language search, is due to be announced next month.
Microsoft and Powerset both declined to comment on the report.
The deal could help Microsoft in the wake of its, although sources say Microsoft is also for Yahoo's search engine, amid urging from Yahoo shareholders.
Rumors that Microsoft washave been swirling for weeks.
In November 2006, Powerset said it had landed $12.5 million in Series A funding from Foundation Capital, Founders Fund, and angel investors.