Problem with uninstalling Nero

Hi,

I am facing a problem while uninstalling a demo version of nero6.I am using windows 7 ultimate.In "control panel > programs" there is no list of nero.So I navigated to the installation directory and run uninstaller it says "configuration file not found" however there is a cfg file in the same location where uninstaller is.How do uninstall it ?Will there be any issue if i manually delete the whole installation directory ?

Thanks,
 
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