From: Nuralanur@... Date: 2006-06-07T00:24:08+09:00 Subject: Re: External application under Windows -------------------------------1149607426 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Dear Chris, thank you for that link, it works very well - for Matlab. However, I'd still like to know how this Program.Application thing works in general, since I can not talk to my Gnuplot installation (built in Cygwin) via class Gnuplot def initialize @ole = WIN32OLE.new("Gnuplot.Application") #"Gnuplot.Application.Single" end end Maybe this is a path question ? If so, how do I tell win32ole to associate Gnuplot.Application to C:\cygwin\usr\local\bin ? I've tried to add this to the system variable but that didn't work ( `initialize': unknown OLE server: `Gnuplot.Application' (WIN32OLERuntimeError).) Thanks, Best regards. Axel -------------------------------1149607426--