Vista late due to security update
Ensuring that security is the best it can be is one of the reasons why Microsoft's new Vista operating system hasn't been launched to the public yet, the software giant says.
Microsoft International president Jean-Philippe Courtois said "tons of work" had been done to ensure that Vista was as secure as possible.
He told the BBC:
"Microsoft has raised its game in a big way on security and Windows Vista is the next big step. The company has learnt to design software which is secure by default."
Vista - Microsoft's first major new product since Windows XP - was supposed to be available before the end of the year. It now says business customers will be able to buy Vista within weeks, but home users will have to wait until next year.
