Online Security, a global provider of computer forensics and information technology risk mitigation since 1997   Norton False Positives Stir Windows Users InstallShield, the company that standardized software installations on hundreds of millions of Windows PCs, became the most recent victim of a Norton AntiVirus false positive problem. Norton virus definition files released on 9-11 November mistakenly identified the InstallShield Professional 6.31 script engine (ikernel.exe) as being infected with the Nimda virus.In short, any program using that version of InstallShield for its setup routine would have been identified by Norton AntiVirus as being infected with Nimda. Symantec released new definition files on 12 November to alleviate the false positive reporting of W32.Nimda.enc(dr) in iKernel.ex_ and iKernel.exe. (Source: Acout.com 19 November)