Microsoft Buying Sybari Software:

"Microsoft (MSFT:Nasdaq - commentary - research) agreed to acquire Sybari Software Tuesday, pre-empting an initial offering that had been expected this week from the antivirus software provider.
The price wasn't disclosed. Sybari previously estimated its IPO price at $16 a share and expected to have 11.6 million shares outstanding after the deal, implying a market cap of about $185 million. The company did $38.3 million in total sales in 2003. "