The European Union is refining a set of guidelines that would strengthen its ability to respond to computer security crises as well as ensure Internet infrastructure in member countries is more resilient.

The European Commission will proceed with its antitrust case against Microsoft regardless of the announcement late Thursday that the software giant is stripping its browser, Internet Explorer (IE), from the next incarnation of its operating system, Windows 7, in Europe.

Microsoft's plan to strip out its Internet Explorer (IE) browser from Windows 7 in Europe, due for sale in the fall, is designed to force the European Commission's hand as it devises an antitrust remedy to restore fair competition in the browser market, said Jon von Tetzchner, the CEO of Norwegian browser maker Opera.

The European Commission is asking PC makers and software rivals if Microsoft has been pressuring them in connection with the ongoing antitrust case concerning Web browsers, one such company said Tuesday.

The European Commission has laid out guidelines for how European Union national governments can boost development of super-fast broadband networks without falling foul of European laws designed to restrict state aid.