hi friends i have just install comodo internet security latest version on my windows xp pro x86 and software is good firewall and antivirus both in one software is really good this software is worth having, i have use antivir but it does not give firewall and they does not allow any other security software so i find this is good software. another thing i am using avast pro antivirus and comodo internet security both together it does not have any problems.