I've never used GraphViz2, and this is probably a stupid question, but you do have IPC::Run on board, I imagine? Have you tried adding use IPC::Run;?

Hope you find an answer!

In reply to Re: IPC::Run::run not working under mod_cgi on Windows? by mtmcc
in thread IPC::Run::run not working under mod_cgi on Windows? by larryk

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