From: Lyndon Samson <lyndon.samson@...>
Date: 2006-08-15T19:13:38+09:00
Subject: Re: Setting Windows Environment Variables

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Have a look at this

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/environment_variables.asp

and then here

http://www.ruby-doc.org/stdlib/libdoc/Win32API/rdoc/classes/Win32/Registry/API.html

You might be in luck.

cheers
lyndon

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