IBM has won stockholder approval of a buyout bid and closed another acquisition deal, adding to its product and service arms.

Internet Security Systems (ISS) will become an IBM subsidiary after shareholders approved a $1.3 billion cash offer yesterday. IBM announced on 23 August that it was buying the company. ISS' services protect networks, servers and PCs by pre-emptively blocking Web threats, such as spam and viruses. ISS will become part of IBM Global Technology Services division and all 1,300 employees will be kept on.

Meanwhile, IBM completed its $1.6 billion bid for FileNet late last week, adding to the company's enterprise content management (ECM) portfolio. FileNet's content management and business process applications have been used by 4,300 businesses. Although IBM runs its own ECM division and FileNet's software will be added to that business, the company will support both platforms. FileNet's applications will be integrated with IBM's business process management and SOA (service-oriented architecture) wares, IBM said.

The FileNet buy is IBM's fifth purchase in the SOA market. In August, it bought business processes tools developer Webify Solutions for an undisclosed sum and offered $740 million for service management company MRO Software. In 2005, Big Blue also acquired hardware appliance company DataPower in October, and portal technology and tools business Bowstreet in December.