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Trying to install NetBeans 6.9 on Windows 7 Ultimate 64-bit with virus protection program Avast! 6.0.1000 returns a warning about possibly malicious software. p.s. Had no idea about component, just picked "Code"
It is recommended to disable firewall/antivirus before installation since various antivirus clients reports false positive and moreover can influence the installation process. http://www.netbeans.org/community/releases/69/install.html#troubleshooting There is no virus in the installer, you can pick up the part of the installer that is reported by avast and submit is as a false alarm to Avast team.