You need Office Web Components if you get the error when using -o:chart in LogParser:
Error creating output format "chart": This output format requires a licensed Microsoft Office Chart Web Component to be installed on the local machine
This is the component installer (discontinued) you need for using things like charts in LogParser:
http://www.microsoft.com/en-us/download/details.aspx?id=22276
Download Office Web Components (OWC) (Office 2007)
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