Andhracafe.com- Munich, March 19 (DPA) The Windows Vista operating system offers poor protection against PC viruses. Users are advised to use supplementary security software when switching to the new Microsoft platform.

This is the recommendation of Munich-based PC Professionell magazine. 'Live One Care,' a security programme included with the operating system, proved particularly porous to trojans during the magazine's testing.

One in four bugs went unrecognized by the software and were able to install themselves unnoticed on the PC. One in 20 PC viruses also went undiscovered by the programme.

More than one in 10 spy ware programmes also went un-removed. Nor did the firewall offer much protection. When running with the default settings, it blocked only four of 20 unwanted data connections from the Internet.

Most spy tools could therefore spy unimpeded on personal data and forward it out onto the Internet, PC Professionell warns.